PT - JOURNAL ARTICLE AU - Helen M Sorenson TI - Flutter-Type Mucus-Clearance Devices and Pulmonary Function in the Elderly DP - 2010 Nov 01 TA - Respiratory Care PG - 1506--1507 VI - 55 IP - 11 4099 - http://rc.rcjournal.com/content/55/11/1506.short 4100 - http://rc.rcjournal.com/content/55/11/1506.full