Article History
Received: 25 July 2018
Accepted: 26 September 2018
First Online: 10 October 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of Arimakougen Hospital (approval number: 2016-07). The requirement for written informed consent was waived by the Ethics Committee, since the study involved record review only. The information about this study was posted in the hospital, and patients were given opportunity to opt-out of participation.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.