1. Dysfunctional labor. II. Protracted active-phase dilatation in the nullipara;Friedman;Obstet Gynecol,1961
2. Dysfunctional labor. III. Secondary arrest of dilatation in the nullipara;Friedman;Obstet Gynecol,1962
3. Station of the fetal presenting part. VI. Arrest of descent in nulliparas;Friedman;Obstet Gynecol,1976
4. Time-related peripartum determinations of postpartum morbidity;D’Angelo;Obstet Gynecol,1980
5. Identification and management of women at high risk for pelvic infection following cesarean section;DePalma;Obstet Gynecol,1980