TY - JOUR T1 - The author responds: JF - Respiratory Care SP - 64 LP - 65 VL - 52 IS - 1 AU - Amal Jubran Y1 - 2007/01/01 UR - http://rc.rcjournal.com/content/52/1/64.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -