Philipova, I. et al. 2021. PREVALENCE OF NEISSERIA GONORRHOEAE AND MYCOPLASMA GENITALIUM IN BULGARIAN POPULATION FROM SOFIA MUNICIPALITY OF REPRODUCTIVE AGE, 2018-2019. PROBLEMS of Infectious and Parasitic Diseases. 49, 2 (Aug. 2021), 20–26. DOI:https://doi.org/10.58395/pipd.v49i2.56.