Funding for this research was provided by:
National Health Research Institutes (NHRI-CA-107-PP03, NHRI-CA106-PP03)
Ministry of Health and Welfare (MOHW 107-TDU-B-212-144013)
Ministry of Science and Technology, Taiwan (MOST 107-2314-B-400-030)
Received: 23 November 2018
Accepted: 17 June 2019
First Online: 28 June 2019
Ethics approval and consent to participate
: The study protocol was approved by the Research Ethics Committee of National Health Research Institutes (EC1040409-E) and Institutional Human Experiment and Ethic Committee of National Cheng Kung University Hospital (HR-97-100) for the use of clinical materials for research purpose.
: Not applicable.
: The authors declare that they have no competing interests.