PT - JOURNAL ARTICLE AU - Goss, Christopher H TI - Airway Clearance in Cystic Fibrosis DP - 2003 Jan 01 TA - Respiratory Care PG - 20--21 VI - 48 IP - 1 4099 - http://rc.rcjournal.com/content/48/1/20.short 4100 - http://rc.rcjournal.com/content/48/1/20.full