TY - RPRT TI - Reverse transcriptase in normal rhesus monkey placenta. AU - R J Mayer AU - R G Smith AU - R C Gallo PY - 1974 DO - 10.1126/science.185.4154.864 UR - https://pubmed.ncbi.nlm.nih.gov/4135760/ ID - 4135760 ER -