title: Appearance of reverse transcriptase activity in human fetal thymus cells stimulated by human B-cell.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D002478:Cells, Cultured; D004790:Enzyme Induction; D005333:Fetus; D006801:Humans; D008213:Lymphocyte Activation; D008211:Lymphocyte Cooperation; D012194:RNA-Directed DNA Polymerase / Q000032:analysis*; D012190:Retroviridae / Q000201:enzymology; D013950:Thymus Gland / Q000201:enzymology*; D014775:Virus Activation
chemical_list: D012194:RNA-Directed DNA Polymerase