Tanaka, Shigeru
Nakano, Toshiaki http://orcid.org/0000-0001-9235-5615
Tokumoto, Masanori
Masutani, Kosuke
Tsuchimoto, Akihiro
Ooboshi, Hiroaki
Kitazono, Takanari
Funding for this research was provided by:
Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (18K17405)
Article History
Received: 16 November 2019
Accepted: 7 June 2020
First Online: 27 June 2020
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exists.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional review board (IRB) at which the studies were conducted (IRB approval number 469-8 in Kyushu University, Fukuoka, Japan) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The ethics committee of all participating institutions granted approval to waive requirement for written, informed consent because of the retrospective nature of the present study.