Aslam, T., S. Amir, S. Batool, N. Zia, S. R. Tabassum, M. S. Iqbal, and A. A. Salam. “Frequency of Deep Venous Thrombosis After Abdominal Surgery”. Annals of Punjab Medical College, Vol. 14, no. 1, Mar. 2020, pp. 5-8, doi:10.29054/apmc/2020.684.