- Correspondence to Dr Wayne Gao, Master's Program in Global Health and Development, Taipei Medical University, Taipei, Taiwan; ; Dr Chi Pang Wen, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan;
- Received May 24, 2019
- Revised September 6, 2019
- Accepted September 6, 2019
- First published October 14, 2019.
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