title: [Comparative study of the effectiveness of lenampicillin and bacampicillin on bacterial pneumonia by double blind method].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000667:Ampicillin / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000188:drug therapy* / Q000382:microbiology
chemical_list: D000667:Ampicillin; C011674:bacampicillin; C045384:lenampicillin