title: Is the gastrointestinal tract the sole source of organisms in ventilator-associated pneumonia?
authors.forename: Robert R
authors.initials: RR
authors.lastname: Demers
mesh_terms: D004064:Digestive System / Q000382:microbiology*; D019317:Evidence-Based Medicine; D006801:Humans; D006813:Humidity; D018410:Pneumonia, Bacterial / Q000209:etiology* / Q000382:microbiology; D012121:Respiration, Artificial / Q000009:adverse effects*