Ollero, M [Spread pattern of HIV-2 in patients at risk. Evaluation of serologic markers]. [electronic resource] - Anales de medicina interna (Madrid, Spain : 1984) Mar 1991 - 116-21 p. digital Publication Type: English Abstract; Journal Article ISSN: 0212-7199 Subjects--Topical Terms: AdultBiomarkers--bloodHIV SeroprevalenceHIV-2--isolation & purificationHumansRisk FactorsSpain--epidemiology