Ho, Hsiang-Ling
Kao, Hua-Lin
Yeh, Yi-Chen
Chou, Teh-Ying
Article History
Received: 22 February 2019
Accepted: 11 June 2019
First Online: 21 June 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Taipei Veterans General Hospital (2017–05-008CC). Formal patient consent was waived because of the retrospective study design.
: Not applicable.
: The authors declare that they have no competing interests.