1. Influence of the rupture of membranes on compression of the fetal head during labor;Althabe,1969
2. X-ray diagnosis of muscular spasm in the lower part of the uterus from the degree of moulding of the fetal head;Borell;Acta Obstet. Gynecol. Scand,1959
3. Fetal distress after artificial rupture of membranes;Brotanek;Am. J. Obstet. Gynecol,1968
4. Fetal monitoring in labor;Caldeyro-Barcia,1973
5. Adverse perinatal effects of early amniotomy during labor;Caldeyro-Barcia,1974