TY - RPRT TI - A direct-selection vector derived from pColE3-CA38 and adapted for foreign gene expression. AU - T Vernet AU - P C Lau AU - S A Narang AU - L P Visentin PY - 1985 DO - 10.1016/0378-1119(85)90298-7 UR - https://pubmed.ncbi.nlm.nih.gov/2989103/ ID - 2989103 ER -