Article History
Received: 10 February 2018
Accepted: 16 June 2018
First Online: 20 June 2018
Compliance with ethical standards
:
: The authors declare that they have no any competing interests.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This research adhered to the tenets of the Declaration of Helsinki, and institutional review board (IRB) approval was obtained from the IRB of Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation.