title: Human immunodeficiency virus infection in hemophilia patients: a 4-year prospective study.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics; D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D001708:Biopterins / Q000031:analogs & derivatives / Q000652:urine; D001778:Blood Coagulation Disorders / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006678:HIV / Q000276:immunology; D006467:Hemophilia A / Q000150:complications*; D002836:Hemophilia B / Q000150:complications*; D006801:Humans; D007118:Immunoassay; D007223:Infant; D007558:Italy; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D019798:Neopterin; D011446:Prospective Studies; D011933:Reagent Kits, Diagnostic; D013601:T-Lymphocytes / Q000145:classification; D014842:von Willebrand Diseases / Q000150:complications
chemical_list: D000914:Antibodies, Viral; D011933:Reagent Kits, Diagnostic; D001708:Biopterins; D019798:Neopterin