The effect of betamethasone on fetal biophysical activities and Doppler velocimetry of umbilical and middle cerebral arteries. - Rotmensch, Siegfried; Liberati, Marco; Celentano, Claudio; Efrat, Zeev; Bar-Hava, Itai; Kovo, Mihal; Golan, Avraham; Moravski, Gil; Ben-Rafael, Zion (Acta Obstetricia et Gynecologica Scandinavica, 1999)