Unaiza Jawad, Rizwan Farooq, Muhammad Saeed Khan, Fahad Ul Zain, Muhammad Shoaib Irfan, Muazzam Fuaad 2022. Prevalence of Usage Nicotine and its Dependence among Patients with Depression. Pakistan Journal of Medical & Health Sciences. 16, 05 (Jul. 2022), 1138. DOI:https://doi.org/10.53350/pjmhs221651138.