Surveillance for Anencephaly and Spina Bifida and the Impact of Prenatal Diagnosis—United States, 1985–1994Teratology
Volume 56, Issue 1-2, July - August 1997, Pages: 37–49, Janet D. Cragan, Helen E. Roberts, Larry D. Edmonds, Muin J. Khoury, Russell S. Kirby, Gary M. Shaw, Ellen M. Velie, Ruth D. Merz, Mathias B. Forrester, Roger A. Williamson, Diane S. Krihnamurti, Roger E. Stevenson and Jane H. Dean
Version of Record online : 7 DEC 1998, DOI: 10.1002/(SICI)1096-9926(199707/08)56:1/2<37::AID-TERA8>3.0.CO;2-Z