TY - JOUR T1 - Secondhand smoke and cancer: Where's the proof? JF - Canadian Medical Association Journal JO - CMAJ SP - 442 LP - 442 VL - 159 IS - 5 AU - C. Gray Y1 - 1998/09/08 UR - http://www.cmaj.ca/content/159/5/442.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -