Article History
Received: 28 May 2018
Accepted: 31 July 2018
First Online: 16 August 2018
Compliance with ethical standards
:
: The authors declare no conflicts of interest.
: This study was approved by the Institutional Review Board (the “IRB”) of Chang Gung Medical Foundation on 2018/04/20. The IRB is organized and operates according to the guidelines of good clinical practice and the applicable laws and regulations (IRB No.: 201800562B0).
: The authors declare that an institutional review board/ethics committee determined that informed consent was not required.