Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST 105-2627-M-040-002; 106-2627-M-040-002; 107-2627-M-040-002 and 106 -EPA EPA-F-016-001)
Received: 9 October 2018
Accepted: 3 March 2019
First Online: 12 March 2019
Ethics approval and consent to participate
: This study was approved by the Chung Shan Medical University Institutional Review Board (CS2-17070).
: Not applicable.
: The authors declare that they have no competing interests.
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