Fetal arterial and venous Doppler pulsatility index and time averaged velocity ranges.

MLA

Parra-Cordero, M., et al. “Fetal Arterial and Venous Doppler Pulsatility Index and Time Averaged Velocity Ranges.” Prenatal Diagnosis, vol. 27, no. 13, Dec. 2007, pp. 1251–57. EBSCOhost, https://doi.org/10.1002/pd.1868.

APA

Parra-Cordero, M., Lees, C., Missfelder-Lobos, H., Seed, P., & Harris, C. (2007). Fetal arterial and venous Doppler pulsatility index and time averaged velocity ranges. Prenatal Diagnosis, 27(13), 1251–1257. https://doi.org/10.1002/pd.1868

Chicago

Parra-Cordero, M, C Lees, H Missfelder-Lobos, P Seed, and C Harris. 2007. “Fetal Arterial and Venous Doppler Pulsatility Index and Time Averaged Velocity Ranges.” Prenatal Diagnosis 27 (13): 1251–57. doi:10.1002/pd.1868.