Kumar R, Jha AK, Munish VG, Pusp A, Sinha P, Gupta P, Kumar M, Saroj SK, Mishra J, Rachna, Dubey SM, Amrita, Berry A, Raheja A, Goyer G, Kadambri, Bhardwaj M, Malik M, Kumar N, Tyagi P, Solanki P, Salaria R, Savitri, Kumar S, Zafar Z.
National Tobacco Quitline – A Comparative Study of Prevalence of Smoking and Smokeless Tobacco Use in India: A Brief One-year Report. 
Indian J Chest Dis Allied Sci
2018;
60
(4):221-225.