Asano, Kenichiro http://orcid.org/0000-0002-4147-4312
Katayama, Kosuke
Kakuta, Kiyohide
Ohkuma, Hiroki
Article History
Received: 6 February 2018
Revised: 4 April 2018
Accepted: 17 April 2018
First Online: 25 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: This study was approved by The Committee of Medical Ethics at Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
: All patients treated using this surgical instrument gave informed consent for their operations.