RT Journal Article SR Electronic(1) A1 Andrew, M. H. E.YR 1973 T1 Use of Trimethoprim to Obtain Thymine-requiring Mutants of Streptococcus faecalis JF Microbiology, VO 74 IS 1 SP 195 OP 199 DO https://doi.org/10.1099/00221287-74-1-195 PB Microbiology Society, SN 1465-2080, AB , UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-74-1-195