No abstract available
MeSH terms
-
Acquired Immunodeficiency Syndrome / diagnosis*
-
Acquired Immunodeficiency Syndrome / epidemiology
-
Acquired Immunodeficiency Syndrome / prevention & control
-
Adolescent
-
Adult
-
Bulgaria / epidemiology
-
HIV Seropositivity*
-
Humans
-
Immunoenzyme Techniques
-
Middle Aged
-
Risk