title: Penicillin-resistant Bacteroides melaninogenicus.
mesh_terms: D000368:Aged; D001439:Bacteroides / Q000187:drug effects*; D006801:Humans; D008297:Male; D010400:Penicillin G / Q000494:pharmacology*; D010403:Penicillin Resistance; D011014:Pneumonia / Q000188:drug therapy / Q000382:microbiology; D001443:Prevotella melaninogenica / Q000187:drug effects*
chemical_list: D010400:Penicillin G