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	1.	Transabdominal chorionic villus sampling. [electronic resource] by Umstad, M P Robinson, H P de Crespigny, L C Ngu, A C Producer: 19890414 In: The Australian & New Zealand journal of obstetrics & gynaecology vol. 28 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Ultrasound-guided fetal blood exchange transfusion for severe erythroblastosis. [electronic resource] by Ngu, A C Robinson, H P de Crespigny, L C Quinn, M Doyle, L Producer: 19870828 In: The Australian & New Zealand journal of obstetrics & gynaecology vol. 27 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Transabdominal chorion villus sampling: a safe and reliable procedure. [electronic resource] by Robinson, H P de Crespigny, L C Ngu, A C Robertson, A Halliday, J L Producer: 19910917 In: The Australian & New Zealand journal of obstetrics & gynaecology vol. 31 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Correlation between nuchal thickness and abnormal karyotype in first trimester fetuses. [electronic resource] by Hewitt, B G de Crespigny, L Sampson, A J Ngu, A C Shekleton, P Robinson, H P Producer: 19961127 In: The Medical journal of Australia vol. 165 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)