1. Routine vaginal examinations during labor;Bertelsen;American Journal of Obstetrics and Gynecology,1986
2. The use of unlimited non-sterile vaginal examination in the conduct of labor;Jara;American Journal of Obstetrics and Gynecology,1956
3. To do or not to do—A critical review of vaginal examination during labor;Manning;American Journal of Obstetrics and Gynecology,1961
4. Active management of labour;O'Driscoll,1980
5. Routine vaginal examinations during labor;Peterson;American Journal of Obstetrics and Gynecology,1965