Bassam, A. M., Y. Raafat, A. M. A. Al-Aziz, and Rasha Ramadan Mostafa. “Immunohistochemical Expression of ‘HCG-β’ in Colorectal Carcinoma”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. A, Sept. 2021, pp. 789-97, doi:10.3889/oamjms.2021.6854.