TY - RPRT TI - Differentiation-dependent human immunodeficiency virus long terminal repeat regulatory elements active in human teratocarcinoma cells. AU - S L Zeichner AU - G Hirka AU - P W Andrews AU - J C Alwine PY - 1992 DO - 10.1128/jvi.66.4.2268-2273.1992 UR - https://pubmed.ncbi.nlm.nih.gov/1548760/ ID - 1548760 ER -