Funding for this research was provided by:
Mackay Memorial Hospital (MMH-107-106)
Received: 2 October 2018
Accepted: 29 May 2019
First Online: 21 June 2019
Ethics approval and consent to participate
: This study was approved by the MacKay Memorial Hospital Institutional Review Board (Protocol number: 18MMHIS141).The need for consent from the subjects in this study was waived because this study was of the lowest risk, and the possible risk to the subjects participating in this study was not more than that for nonparticipants. It was approved by the Mackay Memorial Hospital Institutional Review Board. This study was within the scope of the conditions for which consent of study subjects was not required in research, according to the national regulation, as stated in form 1010265083C issued by the Taiwan Ministry of Health and Welfare on the 5th of July 2012 to the institutional review board of medical organizations.
: Not applicable.
: The authors declare that they have no conflicting interests.