title: Letter: Penicillin-"sensitive" methicillin-resistant Staphylococcus aureus.
mesh_terms: D008712:Methicillin / Q000494:pharmacology*; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D013211:Staphylococcus aureus / Q000187:drug effects*
chemical_list: D010406:Penicillins; D008712:Methicillin