1 Medical School for International Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel. Electronic address: markclar@bgu.ac.il.
2 Rambam Health Care Campus, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
3 Braun School of Public Health, Hebrew University-Hadassah, Jerusalem, Israel.
4 Medical School for International Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.