1. The Reliability and Validity of Birth Certificates
Sally Northam, Thomas R. Knapp 
Journal of Obstetric, Gynecologic & Neonatal Nursing 
Volume 35, Issue 1, Pages 3-12 (January 2006)
DOI: /j x
Copyright © 2006 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses Terms and Conditions

2. Figure 1 Texas birth certificate
Journal of Obstetric, Gynecologic & Neonatal Nursing  , 3-12DOI: ( /j x)
Copyright © 2006 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses Terms and Conditions