1. Chorionic Villi Sampling: A Nursing Perspective
Marilyn R. Stringer, RNC, BSN 
Journal of Obstetric, Gynecologic & Neonatal Nursing 
Volume 17, Issue 1, Pages (January 1988)
DOI: /j tb00409.x
Copyright © 1988 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses Terms and Conditions

2. Figure 1 Chorionic villi sampling catheter.
Journal of Obstetric, Gynecologic & Neonatal Nursing  , 19-22DOI: ( /j tb00409.x)
Copyright © 1988 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses Terms and Conditions

3. Figure 2 Chorionic villi sampling at 12 weeks.
Journal of Obstetric, Gynecologic & Neonatal Nursing  , 19-22DOI: ( /j tb00409.x)
Copyright © 1988 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses Terms and Conditions