when compared with patients with nosocomial gss infection , patients with nosocomial grs had been in the hospital ( p = 0.04 ) and the intensive care unit ( p = 0.003 ) longer before infection and more had received gentamicin ( p = 0.001 ) or ampicillin ( p = 0.02 ) before infection .
C0205721
nosocomial
C0009450
infection