1 Division of Cytopathology, ICMR-National Institute for Cancer Prevention and Research, I-7, Sector-39, Noida (U.P), India.
2 Division of Epidemiology & Biostatistics, ICMR-National Institute for Cancer Prevention and Research, I-7, Sector-39, Noida (U.P), India.
3 School of Preventive Oncology, Patna & Ex-Consultant, WHO FCTC Global Knowledge Hub on Smokeless Tobacco, ICMR-National Institute for Cancer Prevention and Research, I-7, Sector-39, Noida (U.P), India.
4 ICMR-National Institute for Cancer Prevention and Research and Director, WHO FCTC Global Knowledge Hub on Smokeless Tobacco, I-7, Sector-39, Noida (U.P), India.