TY - JOUR T1 - The authors respond: JF - Respiratory Care SP - 538 LP - 539 VL - 51 IS - 5 AU - Linda C Gallegos AU - John W Shigeoka Y1 - 2006/05/01 UR - http://rc.rcjournal.com/content/51/5/538.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -