Validation of Obstetric Estimate Using Early Ultrasound: 2007 California Birth Certificates.

MLA

Barradas, Danielle T., et al. “Validation of Obstetric Estimate Using Early Ultrasound: 2007 California Birth Certificates.” Paediatric & Perinatal Epidemiology, vol. 28, no. 1, Jan. 2014, pp. 3–10. EBSCOhost, https://doi.org/10.1111/ppe.12083.

APA

Barradas, D. T., Dietz, P. M., Pearl, M., England, L. J., Callaghan, W. M., & Kharrazi, M. (2014). Validation of Obstetric Estimate Using Early Ultrasound: 2007 California Birth Certificates. Paediatric & Perinatal Epidemiology, 28(1), 3–10. https://doi.org/10.1111/ppe.12083

Chicago

Barradas, Danielle T., Patricia M. Dietz, Michelle Pearl, Lucinda J. England, William M. Callaghan, and Martin Kharrazi. 2014. “Validation of Obstetric Estimate Using Early Ultrasound: 2007 California Birth Certificates.” Paediatric & Perinatal Epidemiology 28 (1): 3–10. doi:10.1111/ppe.12083.