Dharma N Bhatta1, Stanton A Glantz2,3. 1. Community Medicine and Public Health, People's Dental College, Trivuban University, Kathmandu, Nepal. 2. Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA. 3. Center for Tobacco Control Research and Education, Department of Medicine (Cardiology), Cardiovascular Research Institute, and Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA.