title: Penicillin tolerance in beta-streptococci.
authors.forename: B J
authors.initials: BJ
authors.lastname: Woolfrey
mesh_terms: D004361:Drug Tolerance; D008826:Microbial Sensitivity Tests; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D013291:Streptococcus / Q000187:drug effects*
chemical_list: D010406:Penicillins