Prawira Lesmana , Daniel Kristian, Denny Rifsal Siregar, and Dedy Hermansyah. 2023. “Clinicopathological Characteristics of Invasive Breast Carcinoma on PDL-1 Immunohistochemical Expression in H. Adam Malik Hospital Medan”. Sumatera Medical Journal 6 (1):20-27. https://doi.org/10.32734/sumej.v6i1.9061.