Wadhwani, A. K., W. Ali, and M. I. Jat. “Frequency of Depressive Disorder Among Patients of Breast Cancer Visiting a Tertiary Care Public Hospital at Karachi”. Journal of Liaquat University of Medical & Health Sciences, vol. 19, no. 04, Dec. 2020, pp. 271-4, http://121.52.154.205/index.php/jlumhs/article/view/493.