Sundheimer LW, et al. - Researchers sought to assess if fertility treatments affect ratio of fetal weight to placenta size in humans. They performed a retrospective study of two cohorts: (a) early gestation cohort (2,170 patients), women with singleton pregnancies who underwent first trimester vaginal ultrasound and (b) delivered cohort (1,443 patients), women who delivered a live-born, singleton infant with placenta disposition to pathology. As per outcomes, mode of conception appeared not influencing fetal growth-to-placental weight ratios throughout gestation.