Funding for this research was provided by:
Chang Gung Memorial Hospital, Linkou (CMRPF1A0031)
Text and Data Mining valid from 2018-09-06
Received: 8 February 2017
Accepted: 13 August 2018
First Online: 6 September 2018
Ethics approval and consent to participate
: This study received institutional review board (IRB) approval (no. 99-0243B) of Chang Gung Memorial Hospital, Taiwan. All participants signed an informed consent form.
: Not applicable.
: The authors declare that they have no competing interests.
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