Reliability of self reported smoking status by pregnant women for estimating smoking prevalence: a retrospective, cross sectional study

Autor: Shipton, Deborah, Tappin, David M, Vadiveloo, Thenmalar, Crossley, Jennifer A, Aitken, David A, Chalmers, Jim
Zdroj: BMJ: British Medical Journal, 2009 Nov . 339(7732), 1241-1241.
Databáze: JSTOR Journals