Second-trimester placental volume measurement by ultrasound: Prediction of fetal outcomeHans Wolf, Pieter E. Treffers, Hans Oosting|American Journal of Obstetrics and Gynecology|1989Cited by 74
A longitudinal study of the relationship between placental and fetal growth as measured by ultrasonographyHans Wolf, Pieter E. Treffers, Hans Oosting|American Journal of Obstetrics and Gynecology|1989Cited by 38
Placental volume measurement by ultrasonography: Evaluation of the methodHans Wolf, Pieter E. Treffers, Hans Oosting|American Journal of Obstetrics and Gynecology|1987Cited by 26