Text and Data Mining valid from 2019-10-23
Received: 7 December 2018
Accepted: 2 October 2019
First Online: 23 October 2019
Ethics approval and consent to participate
: The study was approved by the Local Ethics Committee of Wakkanai City Hospital (Ethics Approval Number: H30–3). Informed consent was obtained from the patient.
: We obtained consent for publication from the patient herself.
: The authors declare that they have no competing interests.