1. School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
2. School of Public Health, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
3. School of Information Science and Technology, Hangzhou Normal University, Hangzhou, China
4. Centre for Global Health, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, Scotland, UK
5. Algebra University, Zagreb, Croatia