Struijk P.C., Mathews V.J., Loupas T., Stewart P.A., Clark E.B., Steegers E.A., Wladimiroff J.W. Blood pressure estimation in the human fetal descending aorta.. „Ultrasound in obstetrics & gynecology: the official journal of the International Society of Ultrasound in Obstetrics and Gynecology”. 5 (32), s. 673–681, październik 2008. DOI: 10.1002/uog.6137. PMID: 18816497.
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Struijk P.C., Mathews V.J., Loupas T., Stewart P.A., Clark E.B., Steegers E.A., Wladimiroff J.W. Blood pressure estimation in the human fetal descending aorta.. „Ultrasound in obstetrics & gynecology: the official journal of the International Society of Ultrasound in Obstetrics and Gynecology”. 5 (32), s. 673–681, październik 2008. DOI: 10.1002/uog.6137. PMID: 18816497.
