TY - JOUR T1 - The natural history of smoking during pregnancy among women in Nova Scotia JF - Canadian Medical Association Journal JO - CMAJ SP - 281 LP - 282 VL - 163 IS - 3 AU - Susan A. Kirkland AU - Linda A. Dodds AU - Gerry Brosky Y1 - 2000/08/08 UR - http://www.cmaj.ca/content/163/3/281.abstract ER -