Maternal Smoking During Pregnancy and Birthweight: A Propensity Score Matching ApproachDa Veiga, Paula Veloso; Wilder, Ronald P. Maternal and Child Health Journal 12.2 (Mar 2008): 194-203.... Maternal Smoking During Pregnancy and Birthweight: A Propensity... the women who persist in smoking through pregnancy are not likely to be randomly... the treatment of interest smoking during pregnancy (S = 1), relative to anotherCited by (11) Referenc
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