Funding for this research was provided by:
Grants-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, and Culture of Japan (24592060)
Received: 6 September 2019
Accepted: 14 January 2020
First Online: 24 January 2020
Compliance with ethical standards
: S.H.H. holds a patent right for the biodegradable glue Lydex and is one of the patent inventors. All other authors have nothing to disclose regarding commercial support.