Author contributions
Takanori Arimoto Data analysis, Drafting article
Eiichi Watanabe Data collection, Data analysis, Critical revision of
article
Ritsuko Kohno Data collection, Approval of article
Kenji Shimeno Data collection, Approval of article
Kan Kikuchi Data collection, Approval of article
Atsushi Doi Data collection, Approval of article
Kanki Inoue Data collection, Approval of article
Takashi Nitta Data collection, Approval of article
Akihiko Nogami Data collection, Approval of article
Haruhiko Abe Data collection, Concept/design, Critical revision of
article
Ken Okumura Data collection, Concept/design