Ghosal , Malay, Asish Debnath, Sukhendu Mondal, Ranadip Chowdhary, and Sarmila Mallik. 2012. “A Study of Applicability of Hamilton Depression Rating Scale in A Tertiary Psychiatry Clinic of Kolkata”. National Journal of Community Medicine 3 (02):247-51. https://njcmindia.com/index.php/file/article/view/1688.