PT - JOURNAL ARTICLE AU - Chapman, K. R. TI - Aerosol therapy in Canada: what are the standards? DP - 1993 Mar 01 TA - Canadian Medical Association Journal PG - 735--743 VI - 148 IP - 5 4099 - http://www.cmaj.ca/content/148/5/735.short 4100 - http://www.cmaj.ca/content/148/5/735.full SO - CMAJ1993 Mar 01; 148