The influence of penicillin therapy on the emergence of Klebsiellae in sputum.
D006801:Humans; D007709:Klebsiella; D010406:Penicillins / Q000494:pharmacology*; D013183:Sputum / Q000382:microbiology*
D010406:Penicillins
KLEBSIELLA; PENICILLIN/effects; SPUTUM/microbiology