N T C Ursem

Doppler flow velocity waveforms in the embryonic chicken heart at developmental stages corresponding to 5–8 weeks of human gestation

A F W van der Steen, J. Bosch, N. Ursem, 2009, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Systolic and diastolic ventricular function in the normal and extra‐embryonic venous clipped chicken embryo of stage 24: a pressure–volume loop assessment

R E Poelmann, P Steendijk, P. Steendijk, 2007, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Fetal brain/liver volume ratio and umbilical volume flow parameters relative to normal and abnormal human development

L. Fedele, N. Ursem, J. Wladimiroff, 2003, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.