Дойчева/Doycheva, В./V.; Митова/Mitova, Й./Y.; Ангелова/Angelova, С./S.; Минчева/Mincheva, Ц./Тs.(Централна медицинска библиотека - МУ София / Central Medical Library - MU Sofia, 2014-04)
Human Immunodefi ciency Virus (HIV), Acquired Immunodefi ciency Syndrome (AIDS), men who have sex with men, injecting drug users, epidemiological surveillance (1)