APA (7th ed.) Citation

R, J., & SL, W. (1991). Transvaginal color Doppler imaging in the assessment of uteroplacental blood flow in the normal first-trimester pregnancy. American journal of obstetrics and gynecology, 164(3), 781. https://doi.org/10.1016/0002-9378(91)90515-s

Chicago Style (17th ed.) Citation

R, Jaffe, and Warsof SL. "Transvaginal Color Doppler Imaging in the Assessment of Uteroplacental Blood Flow in the Normal First-trimester Pregnancy." American Journal of Obstetrics and Gynecology 164, no. 3 (1991): 781. https://doi.org/10.1016/0002-9378(91)90515-s.

MLA (9th ed.) Citation

R, Jaffe, and Warsof SL. "Transvaginal Color Doppler Imaging in the Assessment of Uteroplacental Blood Flow in the Normal First-trimester Pregnancy." American Journal of Obstetrics and Gynecology, vol. 164, no. 3, 1991, p. 781, https://doi.org/10.1016/0002-9378(91)90515-s.