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doi.org/10.1046/j.1469-0705.2001.00391.x, hdl.handle.net/1765/73632
Ultrasound in Obstetrics and Gynecology
Department of Gynaecology & Obstetrics

Struijk, P., Ursem, N., Mathews, J., Clark, E. B., Keller, B., & Wladimiroff, J. (2001). Power spectrum analysis of heart rate and blood flow velocity variability measured in the umbilical and uterine arteries in early pregnancy: A comparative study. Ultrasound in Obstetrics and Gynecology, 17(4), 316–321. doi:10.1046/j.1469-0705.2001.00391.x