Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (105-2628-B-075-008-MY3, 107-2633-B-009-003)
Taipei Veterans General Hospital, Taiwan (VGHUST107-G5-3-3, V106D25-003-MY3)
Article History
Accepted: 26 September 2018
First Online: 2 October 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.