TY - RPRT TI - A phase variation event that activates conjugation functions encoded by the Enterococcus faecalis plasmid pAD1. AU - L T Pontius AU - D B Clewell PY - 1991 DO - 10.1016/0147-619x(91)90041-t UR - https://pubmed.ncbi.nlm.nih.gov/1661426/ ID - 1661426 ER -