title: Penicillin tolerance in experimental streptococcal endocarditis.
mesh_terms: D000818:Animals; D004697:Endocarditis, Bacterial / Q000188:drug therapy* / Q000382:microbiology; D010402:Penicillin G Procaine / Q000494:pharmacology / Q000627:therapeutic use*; D010403:Penicillin Resistance; D011817:Rabbits; D013290:Streptococcal Infections / Q000188:drug therapy* / Q000382:microbiology; D013298:Streptococcus sanguis / Q000187:drug effects*
chemical_list: D010402:Penicillin G Procaine