TY - JOUR T1 - Head of Bed Elevation and Ventilator-Associated Pneumonia JF - Respiratory Care SP - 659 LP - 660 DO - 10.4187/respcare.01797 VL - 57 IS - 4 AU - Brian G Harbrecht Y1 - 2012/04/01 UR - http://rc.rcjournal.com/content/57/4/659.abstract N2 - ER -