Mahmood, Kausar, et al. “POST-TRAUMATIC STRESS DISORDER IN COVID-19 PCR POSITIVE PATIENTS; ITS FREQUENCY AND PSYCHOSOCIAL RISK FACTORS HAVE BEEN OBSERVED IN ENT AND NEUROLOGY OUTPATIENT’S CLINICS”. Pakistan Armed Forces Medical Journal, vol. 71, no. Suppl-3, Dec. 2021, pp. S508-11, https://doi.org/10.51253/pafmj.v71iSuppl-3.7918.