Grigorova, L., R. Dimitrova, A. Partsuneva, A. Gancheva, A. Kostadinova, I. Elenkov, N. Yancheva, M. Stoycheva, T. Doychinova, L. Pekova, M. Kosmidis, and I. Alexiev. “DRUG RESISTANCE MUTATIONS AND TRANSMISSION CLUSTERS OF THE HIV-1 CRF01_AE SUB-EPIDEMIC IN BULGARIA”. PROBLEMS of Infectious and Parasitic Diseases, vol. 49, no. 3, Feb. 2022, pp. 12-19, https://pipd.ncipd.org/index.php/pipd/article/view/49-3-2-drug-resistance-mutations.