RT Journal Article SR Electronic T1 Childhood mental ability and smoking cessation in adulthood: prospective observational study linking the Scottish Mental Survey 1932 and the Midspan studies JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 464 OP 465 DO 10.1136/jech.57.6.464 VO 57 IS 6 A1 M D Taylor A1 C L Hart A1 G Davey Smith A1 J M Starr A1 D J Hole A1 L J Whalley A1 V Wilson A1 I J Deary YR 2003 UL http://jech.bmj.com/content/57/6/464.abstract AB