Funding for this research was provided by:
Chang Gung Medical Foundation (CMRPG3H1551)
Text and Data Mining valid from 2019-09-24
Received: 28 May 2019
Accepted: 21 August 2019
First Online: 24 September 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board at Chang Gung Medical Foundation (ID: 201801493B0), and the need for informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.