Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (106-2314-B-182-028, 107-2314-B-182-052-MY2)
Chang Gung Memorial Hospital (CMRPG3F1852, CMRPG2H0311, CMRPG2H0321)
Received: 18 September 2018
Accepted: 26 March 2019
First Online: 11 April 2019
Ethics approval and consent to participate
: The institutional review board approved this study (201700662B0) and waived the informed consents owing to the retrospective nature of this study.
: Not applicable.
: The authors declare that they have no competing interests.
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