Anwar, Lt Col Syed Faraz, et al. “FREQUENCY OF DVT AFTER TOTAL KNEE REPLACEMENT IN PAKISTANI POPULATION BY EMPLOYING COLOR DUPLEX SCAN: Frequency of DVT After Total Knee Replacement”. Pakistan Armed Forces Medical Journal, vol. 60, no. 2, June 2010, pp. 232-6, https://pafmj.org/PAFMJ/article/view/647.