Funding for this research was provided by:
Buddhist Tzu Chi Medical Foundation (TCF-MP 108-01-02)
Received: 30 March 2020
Accepted: 17 April 2020
First Online: 6 May 2020
Ethics approval and consent to participate
: Not applicable. All authors of the manuscript have read and agreed to its content and are accountable for all aspects of the accuracy and integrity of the manuscript in accordance with ICMJE criteria.
: The article is original, has not already been published in a journal, and is not currently under consideration by another journal.
: None in all authors.