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Editorial
. 2008 Dec 2;179(12):1243-4.
doi: 10.1503/cmaj.081597.

Can studies of harm be harmful?

Joel G Ray
Editorial

Can studies of harm be harmful?

Joel G Ray. CMAJ. .
No abstract available

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References

    1. Wen SW, Zhou J, Yang Q, et al. Maternal exposure to folic acid antagonists and placenta-mediated adverse pregnancy outcomes. CMAJ 2009;179:1263-8. - PMC - PubMed
    1. Mignini LE, Latthe PM, Villar J, et al. Mapping the theories of preeclampsia: the role of homocysteine. Obstet Gynecol 2005;105:411-25. - PubMed
    1. Paulozzi LJ. The relation between small size for gestational age and the sex ratio of children with birth defects. Teratology 2001;63:52-6. - PubMed
    1. Wen SW, Walker M. Risk of fetal exposure to folic acid antagonists. J Obstet Gynaecol Can 2004;26:475-80. - PubMed
    1. Rockhill B, Newman B, Weinberg C. Use and misuse of population attributable fractions. Am J Public Health 1998;88:15-9. - PMC - PubMed

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