PT - JOURNAL ARTICLE AU - D. Ahmad AU - W. K. Morgan TI - Secondhand smoke and cancer: Where's the proof? DP - 1998 Sep 08 TA - Canadian Medical Association Journal PG - 441--442 VI - 159 IP - 5 4099 - http://www.cmaj.ca/content/159/5/441.2.short 4100 - http://www.cmaj.ca/content/159/5/441.2.full SO - CMAJ1998 Sep 08; 159