Hassnain, S., A. . Ahmad, M. S. . Qayyum, M. G. . Farrukh, U. A. . Nawaz, and H. Ahmad. “Effects of COVID-19 Lockdown on Mental Health of Medical Students in Lahore, Pakistan”. Bangladesh Journal of Medical Science, vol. 20, no. 5, Sept. 2021, pp. 125-30, doi:10.3329/bjms.v20i5.55406.