Assessing second-stage progressCaughey, Aaron B. MD, PhDAuthor informationDepartment of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, 505 Parnassus Ave., Box 0132, San Francisco, CA 94143[email protected]American Journal of Obstetrics and Gynecology 203(3):p e8-e9, September 2010.Copyright © Mosby-Year Book Inc. 2010. All Rights Reserved.