| Smokeless tobacco and health in India and South Asia PC Gupta, CS Ray Respirology 8 (4), 419-431, 2003 | 673 | 2003 |
| Epidemiology of betel quid usage PC Gupta, CS Ray Annals-Academy of medicine singapore 33, 31-36, 2004 | 587 | 2004 |
| Tobacco and tuberculosis: a qualitative systematic review and meta-analysis K Slama, CY Chiang, DA Enarson, K Hassmiller, A Fanning, P Gupta, ... The International Journal of Tuberculosis and Lung Disease 11 (10), 1049-1061, 2007 | 535 | 2007 |
| Prevalence of smokeless tobacco use among adults in WHO South-East Asia DN Sinha, PC Gupta, C Ray, PK Singh Indian journal of cancer 49 (4), 342-346, 2012 | 129 | 2012 |
| Smokeless tobacco: a major public health problem in the SEA region: a review PC Gupta, CS Ray, DN Sinha, PK Singh Indian journal of public health 55 (3), 199-209, 2011 | 108 | 2011 |
| Non-cigarette tobacco use among women and adverse pregnancy outcomes LJ England, SY Kim, SL Tomar, CS Ray, PC Gupta, T Eissenberg, ... Acta obstetricia et gynecologica Scandinavica 89 (4), 454-464, 2010 | 86 | 2010 |
| Tobacco, education & health PC Gupta, CS Ray Indian Journal of Medical Research 126 (4), 289-299, 2007 | 47 | 2007 |
| Tobacco and youth in the South East Asian region PC Gupta, CS RAY Indian Journal of Cancer 39 (1), 5-34, 2002 | 45 | 2002 |
| Bidis and smokeless tobacco CS Ray, PC Gupta Current science, 1324-1334, 2009 | 41 | 2009 |
| Rising incidence of oral cancer in Ahmedabad city PC Gupta, CS Ray, PR Murti, DN Sinha Indian journal of cancer 51 (Suppl 1), S67-S72, 2014 | 35 | 2014 |
| The hookah–the Indian waterpipe CS Ray Current Science, 1319-1323, 2009 | 33 | 2009 |
| Areca nut use and cancer in India PC Gupta, CS Ray Biomed Res J 2 (2), 140-165, 2015 | 25 | 2015 |
| Profile of dual tobacco users in India: an analysis from Global Adult Tobacco Survey, 2009-10 PC Gupta, CS Ray, SS Narake, KM Palipudi, DN Sinha, S Asma, ... Indian journal of cancer 49 (4), 393-400, 2012 | 24 | 2012 |
| Etiology and risk factors NW Johnson, B Gupta, DJ Speicher, CS Ray, MH Shaikh, N Al-Hebshi, ... Oral and oropharyngeal cancer, 19-94, 2018 | 19 | 2018 |
| Tobacco related cancer-its impact on the health economy PC Gupta, CS Ray Health Administrator 17 (1), 85-92, 2005 | 17 | 2005 |
| Perspectives on areca nut with some global implications: symposium report PC Gupta, CS Ray, RL Papke, I Stepanov, SS Khariwala, P Chaturvedi, ... Translational Research in Oral Oncology 3, 2057178X18814068, 2018 | 15 | 2018 |
| Social impacts on adult use of tobacco: findings from the International Tobacco Control Project India, Wave 1 Survey CS Ray, MS Pednekar, PC Gupta, M Bansal-Travers, ACK Quah, GT Fong WHO South-East Asia journal of public health 5 (2), 123-132, 2016 | 14 | 2016 |
| Epidemic in India PC Gupta, CS Ray Tobacco: Science, Policy and Public Health, 253-266, 2004 | 14 | 2004 |
| Tobacco smoking and smokeless tobacco use JM Samet, PC Gupta, CS Ray, C Sauvaget, DM Winn World Cancer Report, 88-95, 2014 | 12 | 2014 |
| Research on tobacco in India (including betel quid and areca nut) CS Ray, P Gupta, J de Beyer | 9 | 2003 |
