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APA Citation
Weston, N., Baker, J., Finn, J., & Churchill, D. (n.d.). prenatal diagnosis and the rcog standards for amniocentesis and chorionic villus sampling 2010: a 5 year review from a single unit. Archives of disease in childhood, 94, Fa71–Fa72. http://access.bl.uk/ark:/81055/vdc_100137783666.0x000010