Cite
HARVARD Citation
Shipton, D. et al. (2009). Reliability of self reported smoking status by pregnant women for estimating smoking prevalence: a retrospective, cross sectional study. BMJ. p. . [Online].
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Shipton, D. et al. (2009). Reliability of self reported smoking status by pregnant women for estimating smoking prevalence: a retrospective, cross sectional study. BMJ. p. . [Online].