Nath, A., . Priyanka, J. K. Singh, S. Singh, P. Jain, M. Sardhana, A. Kumar, S. K. Ranjan, and M. K. Singh. “High Level of Estrogen in Male Oral Cancer Patients and Consumption of Smokeless Tobacco”. Journal of Ecophysiology and Occupational Health, vol. 14, no. 3-4, Dec. 2014, pp. 159-64, doi:10.18311/jeoh/2014/1659.