1. American College of Obstetricians and Gynecologists (ACOG) committee opinion. Guidelines for diagnostic imaging during pregnancy,2004
2. ACR-SPR practice parameter for imaging pregnant or potentially pregnant adolescents and women with ionizing radiation,2014
3. Normal physical growth and development;Carswell,2008
4. Good laboratory practices for waived testing sites: Survey findings from testing sites holding a certificate of waiver under the Clinical Laboratory Improvement Amendments of 1988 and Recommendations for Promoting Quality Testing,2005
5. Peers increase adolescent risk taking by enhancing activity in the brain's reward circuitry;Chein;Developmental Science,2011