Salim, S., M. Asif, R. Ahmed, and M. Khadim. “D-1 / PD-L1 EXPRESSION IN INVASIVE BREAST CARCINOMA / CANCER”. Pakistan Armed Forces Medical Journal, Vol. 71, no. 1, Feb. 2021, pp. 67-72, doi:10.51253/pafmj.v71i1.3128.