TY - RPRT TI - The SV40 enhancer can be dissected into multiple segments, each with a different cell type specificity. AU - S Schirm AU - J Jiricny AU - W Schaffner PY - 1987 DO - 10.1101/gad.1.1.65 UR - https://pubmed.ncbi.nlm.nih.gov/2828161/ ID - 2828161 ER -