Pregnancy outcome in natural family planning users: cohort and case-control studies evaluating safety
Conference
Simpson, JL, Gray, RH, Perez, A et al. Pregnancy outcome in natural family planning users: cohort and case-control studies evaluating safety
. Advances in contraception : the official journal of the Society for the Advancement of Contraception, 13(2-3), 201-214. 10.1023/A:1006556022127
Simpson, JL, Gray, RH, Perez, A et al. Pregnancy outcome in natural family planning users: cohort and case-control studies evaluating safety
. Advances in contraception : the official journal of the Society for the Advancement of Contraception, 13(2-3), 201-214. 10.1023/A:1006556022127