Nakajima, Hiroyuki http://orcid.org/0000-0003-1194-7091
Takazawa, Akitoshi
Yoshitake, Akihiro
Tochii, Masato
Tokunaga, Chiho
Hayashi, Jun
Izumida, Hiroaki
Kaneyuki, Daisuke
Asakura, Toshihisa
Iguchi, Atsushi
Article History
Received: 11 July 2018
Accepted: 5 November 2018
First Online: 22 November 2018
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of Saitama Medical University International Medical Centre (Reference number; 17–228).
: The relevant patient provided informed consent for publication of the images in Fig. InternalRef removed.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.