title: Letter: "Impossible" serum gentamicin levels.
mesh_terms: D000328:Adult; D001681:Biological Assay; D003023:Cloxacillin / Q000627:therapeutic use; D004347:Drug Interactions; D004697:Endocarditis, Bacterial / Q000188:drug therapy*; D005839:Gentamicins / Q000097:blood* / Q000627:therapeutic use; D006801:Humans; D007709:Klebsiella; D008297:Male; D011863:Radioimmunoassay; D013203:Staphylococcal Infections / Q000188:drug therapy*; D014508:Urea / Q000097:blood
chemical_list: D005839:Gentamicins; D014508:Urea; D003023:Cloxacillin