PT - JOURNAL ARTICLE AU - J. E. Andersen TI - Prevention of occupational disease DP - 1993 Apr 01 TA - Canadian Medical Association Journal PG - 1107a--1108 VI - 148 IP - 7 4099 - http://www.cmaj.ca/content/148/7/1107a.short 4100 - http://www.cmaj.ca/content/148/7/1107a.full SO - CMAJ1993 Apr 01; 148