Received: 24 April 2020
Accepted: 10 August 2020
First Online: 21 August 2020
Ethics approval and consent to participate
: To collect patient data and clinical characteristics, the IRB application form for the protocol was approved by the Ethics and Research Committee of the Taipei Veterans General Hospital (VGH 9032IC).
: Not applicable.
: The authors declare that this research was conducted without any commercial or financial relationships and that no conflict of interest exists.