1. ACOG Committee on Practice Bulletins—Gynecology, The American College of Obstetrician and Gynecologists. ACOG practice bulletin clinical management guidelines for obstetrician-gynecologists. Number 40, November 2002;Obstet Gynecol,2002
2. An objective definition of shoulder dystocia: prolonged head-to-body delivery intervals and/or the use of ancillary obstetric maneuvers;Spong;Obstet Gynecol,1995
3. Shoulder dystocia: an evidence-based evaluation of the obstetric nightmare;Gherman;Clin Obstet Gynecol,2002
4. Shoulder dystocia and associated risk factors with macrosomic infants born in California;Nesbitt;Am J Obstet Gynecol,1998
5. Can shoulder dystocia be predicted? Preconceptive and prenatal factors;Lewis;J Reprod Med,1998