SIMEONOVSKI, I.; LEVTEROVA, V.; MALCHEVA, M.; KANTARDJIEV, T. GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD. PROBLEMS of Infectious and Parasitic Diseases, [S. l.], v. 46, n. 2, p. 5–9, 2018. Disponível em: https://pipd.ncipd.org/index.php/pipd/article/view/46_2_1_GENETIC_SURVEY_OF_INVASIVE_S._PNEUMONIAE_SEROTYPES_IN_BUL. Acesso em: 13 may. 2021.