Ravinder Mamtani1, Hekmat Alrouh2, Sohaila Cheema1, Albert B Lowenfels3. 1. Department of Global and Public Health, Weill Cornell Medical College in Qatar, Doha, Qatar. 2. Department of Global and Public Health, Weill Cornell Medical College in Qatar, Doha, Qatar. Electronic address: har2005@qatar-med.cornell.edu. 3. Departments of Surgery and of Family and Preventive Medicine, New York Medical College, Valhalla, NY, USA.