[ON NEW SYNTHETIC PENICILLINS].
D001996:Bronchopneumonia; D051379:Mice; D010406:Penicillins; D011702:Pyelitis; D012106:Research; D013203:Staphylococcal Infections; D013290:Streptococcal Infections
D010406:Penicillins
BRONCHOPNEUMONIA; EXPERIMENTAL LAB STUDY; MICE; PENICILLIN; PYELITIS; STAPHYLOCOCCAL INFECTIONS; STREPTOCOCCAL INFECTIONS