Obstetrics: Management of Labor, Delivery, and the Puerperium
Hawkins, Joy L.; Koonin, Lisa M.; Palmer, Susan K.; Gibbs, Charles P.
Department of Anesthesiology, University of Colorado Health Sciences Center, Denver, Colorado; Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia.
Anesthesiology 1997;86:277-284.
