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Article History

Received: 8 January 2020

Accepted: 14 April 2020

First Online: 23 April 2020

Ethics approval and consent to participate

: This study was approved by the review board of National Taiwan University Hospital Hsin-Chu Branch (IRB No.106–018-E). All involving participants were fully informed about the content of the study, and they had the right to withdraw from the study at any time. Written informed consent was obtained prior to the interviews. This study was conducted in accordance with the Declaration of Helsinki.

: Not applicable.

: The authors declare they have no competing interests.