Deep, H. S., K. K., D. S. Mahajan, and H. S. Brar. “Comparative Study of Pulse Oximetry and Ankle-Brachial Index As a Screening Test for Asymptomatic Peripheral Vascular Disease in Type 2 Diabetes Mellitus Against Color Doppler Ultrasonography As Reference Standard”. International Journal of Advances in Medicine, vol. 6, no. 4, July 2019, pp. 1151-6, doi:10.18203/2349-3933.ijam20193263.