Kovalyov, O., S. Zavhorodniy, O. Tolok, A. Anenko, M. Kubrak, M. Danilyuk, and K. Kovalyov. 2026. “PHENOTYPIC SHIFT OF ADENOCARCINOMA TO SQUAMOUS CELL CARCINOMA OF RECTUM AFTER NEOADJUVANT CHEMORADIOTHERAPY WITH DETECTION OF HPV16: A CLINICAL CASE”. Experimental Oncology 48 (2):172-80. https://doi.org/10.15407/exp-oncology.2026.02.172.