1. Categorical data analysis;Agresti,2002
2. Guidelines for vaginal delivery after a previous cesarean birth;American College of Obstetrics and Gynecology,1988
3. Vaginal birth after cesarean delivery;American College of Obstetrics and Gynecology,1998
4. Bureaucratic authority in the ‘company of equals’;Boyd;American Sociological Review,1998
5. Practice guidelines and practicing medicine. are they compatible?;Brook;Journal of the American Medical Association,1989