- Correspondence to Dr Dung Phung, School of Medicine, Griffith University-Gold Coast Campus, Southport, QLD 4215, Australia; ; Dr Cunrui Huang, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China;
- Received November 24, 2018
- Revised January 7, 2019
- Accepted January 12, 2019
- First published March 5, 2019.
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