TY - JOUR T1 - CORRECTION JF - Respiratory Care SP - 1413 LP - 1413 VL - 54 IS - 10 A2 - , Y1 - 2009/10/01 UR - http://rc.rcjournal.com/content/54/10/1413.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -