TY - RPRT TI - R factors from Proteus rettgeri. AU - J N Coetzee AU - N Datta AU - R W Hedges PY - 1972 DO - 10.1099/00221287-72-3-543 UR - https://pubmed.ncbi.nlm.nih.gov/4564689/ ID - 4564689 ER -