Pneumonia prevention: a step backwards.
Johanson
W G
WG
D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D003428:Cross Infection / Q000453:epidemiology / Q000517:prevention & control*; D004352:Drug Resistance, Microbial; D006801:Humans; D011014:Pneumonia / Q000453:epidemiology / Q000517:prevention & control*; D012107:Research Design
D000900:Anti-Bacterial Agents