About the Authors

Li Ping Wong

wonglp@ummc.edu.my

Affiliations Centre of Population Health (CePH), Department of Social and Preventive Medicine, University of Malaya, Kuala Lumpur, Malaysia, Julius Centre University of Malaya (JCUM), Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LPW. Performed the experiments: LPW. Analyzed the data: LPW. Contributed reagents/materials/analysis tools: LPW. Wrote the paper: LPW.