TY - JOUR T1 - Flutter-Type Mucus-Clearance Devices and Pulmonary Function in the Elderly JF - Respiratory Care SP - 1506 LP - 1507 VL - 55 IS - 11 AU - Helen M Sorenson Y1 - 2010/11/01 UR - http://rc.rcjournal.com/content/55/11/1506.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -