Rehana Khadim, et al. “OUTCOMES OF CARDIOPULMONARY RESUSCITATION (CPR) IN EMERGENCY DEPARTMENT OF AFIC & NIHD. OUT-OF-HOSPITAL VERSUS WITNESSEDCARDIAC ARREST: A COMPARATIVE STUDY”. Pakistan Armed Forces Medical Journal, vol. 67, no. SUPPL-2, Apr. 2017, pp. S179-83, https://pafmj.org/PAFMJ/article/view/11901.