PT - JOURNAL ARTICLE AU - Baty, Ronald TI - Blow-By Revisited DP - 2008 Jul 01 TA - Respiratory Care PG - 920--921 VI - 53 IP - 7 4099 - http://rc.rcjournal.com/content/53/7/920.short 4100 - http://rc.rcjournal.com/content/53/7/920.full