Kitazono, Takanari
Ikeda, Yasuo
Nishikawa, Masakatsu
Yoshiba, Satoshi
Abe, Kenji
Ogawa, Akira
Article History
First Online: 3 August 2018
Compliance with ethical standards
:
: Yasuo Ikeda received grants from Daiichi Sankyo. Akira Ogawa received personal fees from Daiichi Sankyo. Takanari Kitazono received personal fees from Daiichi Sankyo. Masakatsu Nishikawa received grants and personal fees from Daiichi Sankyo, personal fees from Sanofi. Satoshi Yoshiba and Kenji Abe are employees of Daiichi Sankyo Co., Ltd (Tokyo, Japan).
: Ethical approval for this study was obtained from the institutional review board of Miyanomori Memorial Hospital, Kitahiroshima Hospital, Hokkaido Neurosurgical Memorial Hospital, Teishinkai Hospital, Teine Keijinkai Hospital, Teine Keijinkai Neurosurgery Clinic, Sendai East Neurosurgical Hospital, Toride Kyodo General Hospital, Tachikawa Hospital, Azumi General Hospital, Japanese Red Cross Society Azumino Hospital, Matsumoto Nakagawa Hospital, Seirei Hamamatsu General Hospital, and Chubu Rosai Hospital.
: Written informed consent was obtained from all participants before the study.