Bakhtawar Shaikh; Inayatullah Awan; Amber u Nissa; Maria Iqbal; Jamil Junejo; Benazir. Pattern and Determinants of Cognitive Impairment Among Cigarette-Smoking Patients With Schizophrenia: A Cross-Sectional Study from Pakistan. IJPRT 2026, 16, 4449-4453.