1. Reliability of self reported smoking status by pregnant women for estimating smoking prevalence: a retrospective, cross sectional study. (29th October 2009) Authors: Shipton, Deborah; Tappin, David M; Vadiveloo, Thenmalar; Crossley, Jennifer A; Aitken, David A; Chalmers, Jim Journal: BMJ Issue: Volume 339(2009) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗