Text and Data Mining valid from 2020-02-08
Received: 28 August 2019
Accepted: 19 December 2019
First Online: 8 February 2020
Ethics approval and consent to participate
: The experimental protocol was approved by the Research Ethics Committee of Hualien Tzu Chi Hospital (IRB 104-70B). Informed consent was obtained from every patient.
: Not applicable.
: The authors declare that they have no competing interests.