Chen, Feng-Tzu
Hung, Tsung -Ming
Chang, Yu-Kai
Article History
First Online: 31 October 2020
Compliance with Ethical Standards
:
: No sources of funding were used to assist in the preparation of this letter.
: Feng-Tzu Chen, Tsung-Ming Hung, and Yu-Kai Chang have no conflicts of interest that are directly relevant to the content of this letter.