RT Journal Article SR Electronic(1) A1 Curtis, N. A. C. A1 Richmond, M. H. A1 Stanisich, V.YR 1973 T1 R-factor Mediated Resistance to Penicillins which does not Involve a β-Lactamase JF Microbiology, VO 79 IS 1 SP 163 OP 166 DO https://doi.org/10.1099/00221287-79-1-163 PB Microbiology Society, SN 1465-2080, AB , UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-79-1-163