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	1.	Non-echogenic nuchal oedema as a marker in trisomy 21 screening. [electronic resource] by van Zalen-Sprock, M M van Vugt, J M van Geijn, H P Producer: 19920713 In: Lancet (London, England) vol. 339 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	First-trimester uteroplacental and fetal blood flow velocity waveforms in normally developing fetuses: a longitudinal study. [electronic resource] by van Zalen-Sprock, M M van Vugt, J M Colenbrander, G J van Geijn, H P Producer: 20031009 In: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology vol. 4 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Cephalocele and cystic hygroma: diagnosis and differentiation in the first trimester of pregnancy with transvaginal sonography. Report of two cases. [electronic resource] by van Zalen-Sprock, M M van Vugt, J M van dHarten, H J van Geijn, H P Producer: 20031003 In: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology vol. 2 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Ultrasound diagnosis of fetal abnormalities and cytogenetic evaluation. [electronic resource] by van Zalen-Sprock, M M van Vugt, J M Karsdorp, V H Maas, R van Geijn, H P Producer: 19920220 In: Prenatal diagnosis vol. 11 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	Early second-trimester diagnosis of sirenomelia. [electronic resource] by van Zalen-Sprock, M M van Vugt, J M van der Harten, J J van Geijn, H P Producer: 19950720 In: Prenatal diagnosis vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	Characteristics and outcome and the omphalocele circumference/abdominal circumference ratio in prenatally diagnosed fetal omphalocele. [electronic resource] by Kleinrouweler, C E Kuijper, C F van Zalen-Sprock, M M Mathijssen, I B Bilardo, C M Pajkrt, E Producer: 20111212 In: Fetal diagnosis and therapy vol. 30 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)