Birth defects research. Part A, Clinical and molecular teratology
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Birth Defects Res. Part A Clin. Mol. Teratol. · Aug 2004
Comparative Study Clinical Trial Controlled Clinical TrialIs lack of morning sickness teratogenic? A prospective controlled study.
Case-control studies have suggested that the nausea and vomiting of pregnancy (NVP) may have a protective effect against specific malformations. These suggestions have been interpreted as if the lack of NVP may put mothers at an increased teratogenic risk. ⋯ This study did not show an association between lack of NVP and an increase in the overall rates of major malformations.