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Japan

Activities

Employment (3)

Kochi Medical School, Kochi University: Kochi, JP

2020-04-01 to present (Clinical epidemiology)
Employment
Source: Self-asserted source
Ken-ei Sada

Kochi Kenritsu Hata Kenmin Byoin: Sukumo, Kochi, JP

2019-04-01 to present
Employment
Source: Self-asserted source
Ken-ei Sada

Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences: Okayama, JP

2020-03-31 (1) Department of Nephrology, Rheumatology, Endocrinology and Metabolism)
Employment
Source: Self-asserted source
Ken-ei Sada

Works (50 of 112)

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Page 1 of 3

Telemedicine as an alternative to in-person care in the field of rheumatic diseases: A systematic scoping review

Modern Rheumatology
2025-02-13 | Journal article
Contributors: Ken-ei Sada; Shigeru Iwata; Yuzaburo Inoue; Eiichi Tanaka; Keiichiro Nishida; Yutaka Kawahito; Asami Abe; Atsushi Kawakami; Takako Miyamae
Source: check_circle
Crossref

Predicting 30‐day mortality in older patients with suspected infections by adding performance status to quick sequential organ failure assessment

Journal of General and Family Medicine
2025-02-05 | Journal article
Contributors: Masataka Kudo; Sho Sasaki; Toshihiko Takada; Kotaro Fujii; Yu Yagi; Tetsuhiro Yano; Ken‐ei Sada; Shunichi Fukuhara; Narufumi Suganuma
Source: check_circle
Crossref

Effects of cyclophosphamide administration on ovarian dysfunction in pediatric patients with connective tissue diseases: A systematic scoping review

Modern Rheumatology
2024-12-25 | Journal article
Contributors: Ken-ei Sada; Takako Miyamae; Kayoko Kaneko; Sakiko Isojima; Kunihiro Ichinose; Masakazu Matsushita; Kenji Oku; Yasunori Iwata; Keishi Fujio; Atsuko Murashima et al.
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Crossref

Primary Care Research Connect: Reflecting on the first 5 years and looking to the future

Journal of General and Family Medicine
2024-11-14 | Journal article
Contributors: Takuya Aoki; Tesshu Kusaba; Sugihiro Hamaguchi; Ken‐ei Sada; Jun Miyashita; Shunichi Fukuhara
Source: check_circle
Crossref

Clinical practice pattern of Pneumocystis pneumonia prophylaxis in systemic lupus erythematosus: a cross-sectional study from lupus registry of nationwide institutions (LUNA)

Arthritis Research & Therapy
2024-11-12 | Journal article
Contributors: Takahisa Onishi; Ken-ei Sada; Keigo Hayashi; Yoshia Miyawaki; Ryusuke Yoshimi; Yasuhiro Shimojima; Shigeru Ohno; Hiroshi Kajiyama; Kunihiro Ichinose; Shuzo Sato et al.
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Crossref

Trends in prevalence, treatment use, and disease burden in patients with eosinophilic granulomatosis with polyangiitis in Japan: Real-world database analysis

Modern Rheumatology
2024-08-20 | Journal article
Contributors: Ken-ei Sada; Takeo Suzuki; Sandra Joksaite; Shinyoung Ju; John Logie; George Mu; Jeremiah Hwee; Hideaki Kunishige; Takeo Ishii; Amit Adlak et al.
Source: check_circle
Crossref

Trust in Health Information Sources Among Patients with Systemic Lupus Erythematosus in the Social Networking Era: The TRUMP2-SLE Multicentre Study

2024-08-19 | Preprint
Contributors: Takanori Ichikawa; Dai Kishida; Yasuhiro Shimojima; Nobuyuki Yajima; Nao Oguro; Ryusuke Yoshimi; Natsuki Sakurai; Chiharu Hidekawa; Ken-ei Sada; Yoshia Miyawaki et al.
Source: check_circle
Crossref

Patchy reversible renal vasoconstriction

European Journal of Internal Medicine
2024-07 | Journal article
Contributors: Haruka Maruyama; Ken-ei Sada; Takayasu Ohtake
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Crossref

Predictive validity of Lupus Patient-Reported Outcome for damage accrual in patients with systemic lupus erythematosus: the LUNA Registry

Rheumatology
2024-06-17 | Journal article
Contributors: Yoko Nose; Akira Onishi; Keisuke Nishimura; Yuzuru Yamamoto; Ken-ei Sada; Kunihiro Ichinose; Ryusuke Yoshimi; Shigeru Ohno; Ryo Yanai; Hiroshi Kajiyama et al.
Source: check_circle
Crossref

Clinical practice guidelines of the Japan Research Committee of the Ministry of Health, Labour, and Welfare for Intractable Vasculitis for the management of microscopic polyangiitis and granulomatosis with polyangiitis: The 2023 update – secondary publication

Modern Rheumatology
2024-03-28 | Journal article
Contributors: Ken-ei Sada; Kenji Nagasaka; Shinya Kaname; Eishu Nango; Kan Kishibe; Hiroaki Dobashi; Keiju Hiromura; Tamihiro Kawakami; Masashi Bando; Takashi Wada et al.
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Crossref

Evaluation of Ministry of Health, Labour and Welfare diagnostic criteria for antineutrophil cytoplasmic antibody–associated vasculitis compared to ACR/EULAR 2022 classification criteria

Modern Rheumatology
2024-03-28 | Journal article
Contributors: Ken-ei Sada; Kenji Nagasaka; Shinya Kaname; Tomoaki Higuchi; Shunsuke Furuta; Toshihiro Nanki; Naotake Tsuboi; Koichi Amano; Hiroaki Dobashi; Keiju Hiromura et al.
Source: check_circle
Crossref

Clinical Images: Hydrangea‐like nephrocalcinosis in Sjögren's syndrome

Arthritis & Rheumatology
2024-02 | Journal article
Contributors: Shigemi Morishita; Ken‐ei Sada
Source: check_circle
Crossref

Pulmonary alveolar proteinosis during treatment of immune‐mediated necrotizing myopathy

International Journal of Rheumatic Diseases
2024-02 | Journal article
Contributors: Naofumi Dobashi; Ken‐Ei Sada; Gen Kanemori; Takuya Okada; Yusuke Tarutani; Mako Yamamoto; Moemi Yabe; Kenshi Inoue; Yasuhiko Imaizumi; Masahiko Nishii et al.
Source: check_circle
Crossref

Impact of treatment of hyperkalaemia on quality of life: design of a prospective observational cohort study of long-term management of hyperkalaemia in patients with chronic kidney disease or chronic heart failure in Japan

BMJ Open
2023-12 | Journal article
Contributors: Yugo Shibagaki; Hajime Yamazaki; Takafumi Wakita; John E Ware; Jui Wang; Yoshihiro Onishi; Toshitaka Yajima; Ken-Ei Sada; Yosuke Yamamoto; Shunichi Fukuhara
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Crossref

Validation of new ACR/EULAR 2022 classification criteria for anti-neutrophil cytoplasmic antibody–associated vasculitis

Modern Rheumatology
2023-12-22 | Journal article
Contributors: Ken-ei Sada; Shinya Kaname; Tomoaki Higuchi; Shunsuke Furuta; Kenji Nagasaka; Toshihiro Nanki; Naotake Tsuboi; Koichi Amano; Hiroaki Dobashi; Keiju Hiromura et al.
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Crossref

Chemoprophylaxis against Pneumocystis jirovecii pneumonia in Japanese patients with ANCA-associated vasculitis: An observational study

Modern Rheumatology
2023-11-01 | Journal article
Contributors: Izaya Nakaya; Ken-ei Sada; Masayoshi Harigai; Jun Soma; Koichi Amano; Hiroaki Dobashi; Tatsuya Atsumi; Yukio Yuzawa; Shouichi Fujimoto; Takahiko Sugihara et al.
Source: check_circle
Crossref

Concordance between practice and published evidence in the management of ANCA-associated vasculitis in Japan: A cross-sectional web-questionnaire survey

Modern Rheumatology
2023-08-25 | Journal article
Contributors: Yoshia Miyawaki; Takao Fujii; Keisuke Anan; Masanari Kodera; Masao Kikuchi; Ken-Ei Sada; Kenji Nagasaka; Masashi Bando; Hitoshi Sugiyama; Shinya Kaname et al.
Source: check_circle
Crossref

Grit personality of physicians and achievement of treatment goals in patients with system lupus erythematosus

Rheumatology
2023-06-01 | Journal article
Contributors: Ken-ei Sada; Yoshia Miyawaki; Kenta Shidahara; Shoichi Nawachi; Yu Katayama; Yosuke Asano; Keigo Hayashi; Keiji Ohashi; Eri Katsuyama; Takayuki Katsuyama et al.
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Crossref

Effect of Communicative and Critical Health Literacy on Trust in Physicians Among Patients With Systemic Lupus Erythematosus (SLE): The TRUMP2-SLE Project

The Journal of Rheumatology
2023-05 | Journal article
Contributors: Nao Oguro; Nobuyuki Yajima; Yoshia Miyawaki; Ryusuke Yoshimi; Yasuhiro Shimojima; Ken-ei Sada; Keigo Hayashi; Kenta Shidahara; Natsuki Sakurai; Chiharu Hidekawa et al.
Source: check_circle
Crossref

Association ofHLA-class IIalleles with risk of relapse in myeloperoxidase-antineutrophil cytoplasmic antibody positive vasculitis in the Japanese population

2022-12-30 | Preprint
Contributors: Aya Kawasaki; Ken-ei Sada; Premita Ari Kusumawati; Fumio Hirano; Shigeto Kobayashi; Kenji Nagasaka; Takahiko Sugihara; Nobuyuki Ono; Takashi Fujimoto; Makio Kusaoi et al.
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Crossref

Association of one-point glucocorticoid-free status with chronic damage and disease duration in systemic lupus erythematosus: a cross-sectional study

Lupus Science & Medicine
2022-09 | Journal article
Contributors: Ken-ei Sada; Yu Katayama; Yosuke Asano; Keigo Hayashi; Yoshia Miyawaki; Keiji Ohashi; Eri Katsuyama; Takayuki Katsuyama; Mariko Takano-Narazaki; Yoshinori Matsumoto et al.
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Crossref

MOONLIGHT study: the design of a comparative study of the effectiveness of belimumab in patients with a history of lupus nephritis from the post-Marketed effectiveness of belimumab cOhOrt and JapaN Lupus NatIonwide reGistry (LUNA) coHorT

Lupus Science & Medicine
2022-09 | Journal article
Contributors: Kenei Sada; Noriaki Kurita; Hisashi Noma; Taizo Matsuki; Holly Quasny; Roger A Levy; Angela R Jones-Leone; Kerry Gairy; Nobuyuki Yajima
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Crossref

Effects of anti-SSA antibodies on the response to methotrexate in rheumatoid arthritis: A retrospective multicenter observational study

PLOS ONE
2022-07-22 | Journal article
Contributors: Daisuke Waki; Masataka Kuwana; Hiroya Tamai; Ritsuko Yokochi; Toshiki Kido; Yuriko Yagyu; Ryo Yanai; Ken-Ei Sada
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Crossref

Bicarbonate concentration as a predictor of prognosis in moderately severe COVID-19 patients: A multicenter retrospective study

PLOS ONE
2022-06-24 | Journal article
Contributors: Ken-ei Sada; Tatsuo Shimosawa; Ryohei Yamamoto; Akihiko Yano; Atsushi Miyauchi; Masafumi Kawamura; Hideki Ito
Source: check_circle
Crossref

The prevalence, burden of disease, and healthcare utilization of patients with eosinophilic granulomatosis with polyangiitis in Japan: a retrospective, descriptive cohort claims database study

Modern Rheumatology
2022-02-28 | Journal article
Contributors: Ken-ei Sada; Yoshiki Kojo; Jolyon Fairburn-Beech; Keiko Sato; Shoko Akiyama; Melissa K Van Dyke; Isao Mukai
Source: check_circle
Crossref

Suspected Transmission of Severe Fever with Thrombocytopenia Syndrome Virus from a Cat to a Veterinarian by a Single Contact: A Case Report

Viruses
2022-01-24 | Journal article
Contributors: Atsushi Miyauchi; Ken-Ei Sada; Hirotaka Yamamoto; Hiroki Iriyoshi; Yuji Touyama; Daisuke Hashimoto; Shigeru Nojima; Shingo Yamanaka; Keita Ishijima; Ken Maeda et al.
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Crossref
grade
Preferred source (of 2)‎

Recurrent atelectasis and brain infarction in a patient with anti-neutrophil antibody negative eosinophilic granulomatosis with polyangiitis: a case report

BMC Rheumatology
2021-12 | Journal article
Contributors: Ken-ei Sada; Atsushi Miyauchi; Daisuke Hashimoto; Riku Ino; Shigeru Nojima; Shingo Yamanaka; Masafumi Kawamura
Source: check_circle
Crossref

Comparison of fracture risk between proton pump inhibitors and histamine-2 receptor antagonists in ANCA-associated vasculitis patients: a nested case–control study

Rheumatology
2021-04-06 | Journal article
Contributors: Shinako Miyano; Nobuaki Michihata; Ken-Ei Sada; Kazuaki Uda; Hiroki Matsui; Kiyohide Fushimi; Masaomi Nangaku; Hideo Yasunaga
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Crossref

Association of explanatory histological findings and urinary protein and serum creatinine levels at renal biopsy in lupus nephritis: a cross-sectional study

BMC Nephrology
2020-12 | Journal article
Contributors: Eri Katsuyama; Yoshia Miyawaki; Ken-ei Sada; Yosuke Asano; Keigo Hayashi; Yuriko Yamamura; Sumie Hiramatsu-Asano; Michiko Morishita; Keiji Ohashi; Haruki Watanabe et al.
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Crossref

Treatment-related damage in elderly-onset ANCA-associated vasculitis: safety outcome analysis of two nationwide prospective cohort studies

Arthritis Research & Therapy
2020-12 | Journal article
Contributors: Ken-Ei Sada; Keiji Ohashi; Yosuke Asano; Keigo Hayashi; Michiko Morishita; Haruki Watanabe; Yoshinori Matsumoto; Shouichi Fujimoto; Yoshinari Takasaki; Kunihiro Yamagata et al.
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Crossref

Treatment-related damage in elderly-onset ANCA associated vasculitis: Safety outcome analysis of two nationwide prospective cohort studies

2020-09-22 | Preprint
Contributors: Ken-ei Sada; Keiji Ohashi; Yosuke Asano; Keigo Hayashi; Michiko Morishita; Haruki Watanabe; Yoshinori Matsumoto; Shouichi Fujimoto; Yoshinari Takasaki; Kunihiro Yamagata et al.
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Crossref

Treatment-Related Damage in Elderly-Onset ANCA Associated Vasculitis: Safety Outcome Analysis of Two Nationwide Prospective Cohort Studies

2020-07-14 | Preprint
Contributors: Ken-ei Sada; Keiji Ohashi; Yosuke Asano; Keigo Hayashi; Michiko Morishita; Haruki Watanabe; Yoshinori Matsumoto; Shouichi Fujimoto; Yoshinari Takasaki; Kunihiro Yamagata et al.
Source: check_circle
Crossref

The development of quality indicators for systemic lupus erythematosus using electronic health data: A modified RAND appropriateness method

Modern Rheumatology
2020-05-03 | Journal article
Contributors: Nobuyuki Yajima; Yasushi Tsujimoto; Shingo Fukuma; Ken-ei Sada; Sayaka Shimizu; Kakuya Niihata; Ryo Takahashi; Yoshihide Asano; Teruhisa Azuma; Hideto Kameda et al.
Source: check_circle
Crossref

Damage accrual related to pregnancies before and after diagnosis of systemic lupus erythematosus: a cross-sectional and nested case-control analysis from a lupus registry

Lupus
2020-02 | Journal article
Contributors: M Morishita; K-E Sada; K Ohashi; Y Miyawaki; Y Asano; K Hayashi; S Hiramatsu Asano; Y Yamamura; H Watanabe; M Narazaki et al.
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Crossref

Explanatory histological findings for urinary protein and serum creatinine levels at renal biopsy in lupus nephritis: A cross-sectional study

2020-02-06 | Preprint
Contributors: Eri Katsuyama; Yoshia Miyawaki; Ken-ei Sada; Yosuke Asano; Keigo Hayashi; Yuriko Yamamura; Sumie Hiramatsu-Asano; Michiko Morishita; Keiji Ohashi; Haruki Watanabe et al.
Source: check_circle
Crossref

Explanatory histological findings for urinary protein and serum creatinine levels at renal biopsy in lupus nephritis: A cross-sectional study

2020-01-08 | Preprint
Contributors: Eri Katsuyama; Yoshia Miyawaki; Kenei Sada; Yosuke Asano; Keigo Hayashi; Yuriko Yamamura; Sumie Hiramatsu-Asano; Michiko Morishita; Keiji Ohashi; Haruki Watanabe et al.
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Crossref

Association of NCF1 polymorphism with systemic lupus erythematosus and systemic sclerosis but not with ANCA-associated vasculitis in a Japanese population

Scientific Reports
2019-11-08 | Journal article
Contributors: Nozomi Yokoyama; Aya Kawasaki; Takashi Matsushita; Hiroshi Furukawa; Yuya Kondo; Fumio Hirano; Ken-ei Sada; Isao Matsumoto; Makio Kusaoi; Hirofumi Amano et al.
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Crossref

Risk factors for cytomegalovirus infection in patients with antineutrophil cytoplasmic antibody-associated vasculitis

PLOS ONE
2019-07-10 | Journal article
Contributors: Michiko Morishita; Gianluigi Zaza; Ken-Ei Sada; Yoshinori Matsumoto; Keigo Hayashi; Yosuke Asano; Sumie Hiramatsu Asano; Keiji Ohashi; Yoshia Miyawaki; Eri Katsuyama et al.
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Crossref

Thrombocytosis as a prognostic factor in polymyalgia rheumatica: characteristics determined from cluster analysis

Therapeutic Advances in Musculoskeletal Disease
2019-01 | Journal article
Contributors: Keigo Hayashi; Keiji Ohashi; Haruki Watanabe; Ken-Ei Sada; Kenta Shidahara; Yosuke Asano; Sumie Hiramatsu Asano; Yuriko Yamamura; Yoshia Miyawaki; Michiko Morishita et al.
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Crossref

Lymphoproliferative disease in a patient with Takayasu arteritis and ulcerative colitis

Modern Rheumatology Case Reports
2019-01-02 | Journal article
Contributors: Yosuke Asano; Ken-Ei Sada; Keigo Hayashi; Yuriko Yamamura; Sumie Hiramatsu; Keiji Ohashi; Yoshia Miyawaki; Michiko Morishita; Haruki Watanabe; Yoshinori Matsumoto et al.
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Crossref

Anti-SS-A/Ro antibody positivity as a risk factor for relapse in patients with polymyositis/dermatomyositis

Modern Rheumatology
2018 | Journal article
EID:

2-s2.0-85018452708

Contributors: Tatebe, N.; Sada, K.-E.; Asano, Y.; Zeggar, S.; Hiramatsu, S.; Miyawaki, Y.; Ohashi, K.; Morishita, M.; Katsuyama, T.; Katsuyama, E. et al.
Source: Self-asserted source
Ken-ei Sada via Scopus - Elsevier

Cavernous Transformation and Granulomatous Epididymis in Behçet Disease.

Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases
2018-02 | Journal article
Contributors: Motokura Y; Watanabe H; Yamamura Y; Kano Y; Matsumoto Y; Kawabata T; Sada KE; Wada J
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

Development of Hypertrophic Pachymeningitis in a Patient With Antineutrophil Cytoplasmic Antibody-Negative Eosinophilic Granulomatosis With Polyangiitis.

Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases
2018-02 | Journal article
Contributors: Nakano Y; Miyawaki Y; Sada KE; Yamamura Y; Kano Y; Hayashi K; Watanabe H; Matsumoto Y; Kawabata T; Wada J
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

Lgals9 deficiency attenuates nephritis and arthritis in pristane-induced lupus model of BALB/c mice.

Arthritis & rheumatology (Hoboken, N.J.)
2018-02 | Journal article
Contributors: Zeggar S; Watanabe KS; Teshigawara S; Hiramatsu S; Katsuyama T; Katsuyama E; Watanabe H; Matsumoto Y; Kawabata T; Sada KE et al.
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

Risk Factors for Relapse of Antineutrophil Cytoplasmic Antibody-associated Vasculitis in Japan: A Nationwide, Prospective Cohort Study.

The Journal of rheumatology
2018-02 | Journal article
Contributors: Hara A; Wada T; Sada KE; Amano K; Dobashi H; Harigai M; Takasaki Y; Yamada H; Hasegawa H; Hayashi T et al.
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

Association of ETS1 polymorphism with granulomatosis with polyangiitis and proteinase 3-anti-neutrophil cytoplasmic antibody positive vasculitis in a Japanese population.

Journal of human genetics
2018-01 | Journal article
Contributors: Kawasaki A; Yamashita K; Hirano F; Sada KE; Tsukui D; Kondo Y; Kimura Y; Asako K; Kobayashi S; Yamada H et al.
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

Development of a multiplex real-time PCR assay for detection of human enteric viruses other than norovirus using samples collected from gastroenteritis patients in Fukui Prefecture, Japan.

Journal of medical virology
2018-01 | Journal article
Contributors: Kowada K; Takeuchi K; Hirano E; Toho M; Sada K
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

Refractory neuromyelitis optica spectrum disorder in systemic lupus erythematosus successfully treated with rituximab.

Lupus
2018-01 | Journal article
Contributors: Shidahara K; Hayashi K; Sada KE; Hiramatsu S; Morishita M; Watanabe H; Matsumoto Y; Kawabata T; Wada J
Source: Self-asserted source
Ken-ei Sada via Europe PubMed Central

A retrospective observational study of glucocorticoid-induced diabetes mellitus with IgA nephropathy treated with tonsillectomy plus methylprednisolone pulse therapy

PLoS ONE
2017 | Journal article
EID:

2-s2.0-85020020626

Contributors: Miyawaki, Y.; Katsuyama, T.; Sada, K.-E.; Hiramatsu, S.; Ohashi, K.; Morishita, M.; Katsuyama, E.; Watanabe, H.; Takano-Narazaki, M.; Toyota-Tatebe, N. et al.
Source: Self-asserted source
Ken-ei Sada via Scopus - Elsevier

Alternative to Rituximab therapy for a patient with ankylosing spondylitis who was unable to continue anti-TNF therapy

Acta Medica Okayama
2017 | Journal article
EID:

2-s2.0-85031104408

Contributors: Katsuyama, E.; Wakabayashi, H.; Sada, K.-E.; Hiramatsu, S.; Miyawaki, Y.; Morishita, M.; Ohashi, K.; Watanabe, H.; Katsuyama, T.; Zeggar, S. et al.
Source: Self-asserted source
Ken-ei Sada via Scopus - Elsevier
Items per page:
Page 1 of 3

Peer review (41 reviews for 9 publications/grants)

Review activity for BMC nephrology (2)
Review activity for BMJ neurology open. (1)
Review activity for BMJ open. (2)
Review activity for CEN case reports. (5)
Review activity for Clinical and experimental nephrology. (5)
Review activity for Construction robotics. (2)
Review activity for Modern rheumatology (16)
Review activity for Modern rheumatology case reports. (6)
Review activity for PloS one. (2)