1 Faculty of Medicine, University of Jaffna, Jaffna 40000, Sri Lanka; United Nations University-International Institute for Global Health, Kuala Lumpur, Malaysia. Electronic address: ramyak@univ.jfn.ac.lk.
2 Department of Family Medicine, McMaster University, Hamilton, ON, Canada; School of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada; Balsillie School for International Affairs, Waterloo, ON, Canada.