Authors: SHAHIDULLAH S HEPPER PG

Citation: S. Shahidullah et Pg. Hepper, FREQUENCY DISCRIMINATION BY THE FETUS, Early human development, 36(1), 1994, pp. 13-26

Authors: HORIMOTO N HEPPER PG SHAHIDULLAH S KOYANAGI T

Citation: N. Horimoto et al., FETAL EYE-MOVEMENTS, Ultrasound in obstetrics & gynecology, 3(5), 1993, pp. 362-369