Role of mechanical ventilation & development of multidrug resistant organisms in hospital acquired pneumonia.
D016022:Case-Control Studies; D003422:Critical Care; D003428:Cross Infection / Q000188:drug therapy* / Q000209:etiology* / Q000382:microbiology; D024901:Drug Resistance, Multiple, Bacterial; D006801:Humans; D007194:India; D018410:Pneumonia, Bacterial / Q000188:drug therapy* / Q000209:etiology* / Q000382:microbiology; D012121:Respiration, Artificial / Q000009:adverse effects*; D012307:Risk Factors; D013997:Time Factors