PT - JOURNAL ARTICLE ED - , TI - CORRECTION DP - 2012 Sep 01 TA - Respiratory Care PG - 1533--1533 VI - 57 IP - 9 4099 - http://rc.rcjournal.com/content/57/9/1533.short 4100 - http://rc.rcjournal.com/content/57/9/1533.full