Watanabe, Kei http://orcid.org/0000-0002-8743-7074
Katsumi, Keiichi
Ohashi, Masayuki
Shibuya, Yohei
Izumi, Tomohiro
Hirano, Toru
Endo, Naoto
Kaito, Takashi
Yamashita, Tomoya
Fujiwara, Hiroyasu
Nagamoto, Yukitaka
Matsuoka, Yuji
Suzuki, Hidekazu
Nishimura, Hirosuke
Terai, Hidetomi
Tamai, Koji
Tagami, Atsushi
Yamada, Syuta
Adachi, Shinji
Yoshii, Toshitaka
Ushio, Shuta
Harimaya, Katsumi
Kawaguchi, Kenichi
Yokoyama, Nobuhiko
Oishi, Hidekazu
Doi, Toshiro
Kimura, Atsushi
Inoue, Hirokazu
Inoue, Gen
Miyagi, Masayuki
Saito, Wataru
Nakano, Atsushi
Sakai, Daisuke
Nukaga, Tadashi
Ikegami, Shota
Shimizu, Masayuki
Futatsugi, Toshimasa
Ohtori, Seiji
Furuya, Takeo
Orita, Sumihisa
Imagama, Shiro
Ando, Kei
Kobayashi, Kazuyoshi
Kiyasu, Katsuhito
Murakami, Hideki
Yoshioka, Katsuhito
Seki, Shoji
Hongo, Michio
Kakutani, Kenichiro
Yurube, Takashi
Aoki, Yasuchika
Oshima, Masashi
Takahata, Masahiko
Iwata, Akira
Endo, Hirooki
Abe, Tetsuya
Tsukanishi, Toshinori
Nakanishi, Kazuyoshi
Watanabe, Kota
Hikata, Tomohiro
Suzuki, Satoshi
Isogai, Norihiro
Okada, Eijiro
Funao, Haruki
Ueda, Seiji
Shiono, Yuta
Nojiri, Kenya
Hosogane, Naobumi
Ishii, Ken
Article History
Received: 2 July 2018
Accepted: 21 February 2019
First Online: 9 March 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of all institutions involved. Informed consent was waivered by the above ethics committee as the present retrospective cohort study involved already existing data and records at the time of investigation, and did not retain personal identifiers of the gathered information.The ethical committee, Niigata University School of Medicine; reference number 2015-1385The ethical committee, Osaka University School of Medicine; 11360-3The ethical committee, Tokyo Medical University; 2605The ethical committee, Osaka City University School of Medicine; 3170The ethical committee, Nagasaki University School of Medicine; 17032715The ethical committee, Tokyo Medical and Dental University; M2016-055The ethical committee, Kyushu University School of Medicine; 28-359The ethical committee, Jichi Medical University; A13-82The ethical committee, Kitasato University School of Medicine; B16-34The ethical committee, Osaka Medical College; 2169The ethical committee, Tokai University School of Medicine; 16R-033The ethical committee, Shinshu University School of Medicine; 3456The ethical committee, Chiba University School of Medicine; 2481The ethical committee, Nagoya University School of Medicine; 2016-0177The ethical committee, Kochi University School of Medicine; 2016-116The ethical committee, Kanazawa University School of Medicine; 2015-075The ethical committee, University of Toyama School of Medicine; 21-22The ethical committee, Akita University School of Medicine; 1879The ethical committee, Kobe University School of Medicine; 160004The ethical committee, Nihon University Itabashi Hospital; RK-160913-21The ethical committee, Hokkaido University School of Medicine; 015-0396The ethical committee, Iwate Medical University; H28-88The ethical committee, University of Tsukuba School of Medicine; H27-133The ethical committee, Hiroshima University School of Medicine; Epi-139The ethical committee, Keio University School of Medicine; 20110141
: Not applicable.
: The authors declare that they have no competing interests.
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