Otani, Takehito
Morikawa, Yoshihiko
Hayakawa, Itaru https://orcid.org/0000-0002-6384-0205
Atsumi, Yukari
Tomari, Kouki
Tomobe, Yutaro
Uda, Kazuhiro
Funakoshi, Yu
Sakaguchi, Chiho
Nishimoto, Shizuka
Hataya, Hiroshi
Article History
Received: 29 April 2018
Revised: 1 June 2018
Accepted: 21 June 2018
First Online: 30 June 2018
Compliance with ethical standards
: The study was planned and executed in accordance with the Declaration of Helsinki and was approved by the institutional review board.
: There are no conflicts of interest to declare.
: Informed assent to the participants (whenever appropriate) and written informed consent from their caregivers were obtained.