Dr. Ismat Riyaz Khalid. “DEEP VEIN THROMBOSIS RATES AFTER MAJOR LOWER LIMB ORTHOPEDIC SURGERY IN PAKISTAN: PROSPECTIVE STUDY DESIGN”. International Journal of Medical Science And Diagnosis Research, vol. 3, no. 10, Oct. 2019, https://www.ijmsdr.com/index.php/ijmsdr/article/view/494.