PT - JOURNAL ARTICLE AU - Mark R Elkins TI - Therapy for Mucus-Clearance Disorders DP - 2005 Nov 01 TA - Respiratory Care PG - 1462--1464 VI - 50 IP - 11 4099 - http://rc.rcjournal.com/content/50/11/1462.2.short 4100 - http://rc.rcjournal.com/content/50/11/1462.2.full