Cite
HARVARD Citation
Ward, R. et al. (1983). Method of sampling chorionic villi in first trimester of pregnancy under guidance of real time ultrasound.. BMJ. 286 (6377), pp. 1542-1544. [Online].
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Ward, R. et al. (1983). Method of sampling chorionic villi in first trimester of pregnancy under guidance of real time ultrasound.. BMJ. 286 (6377), pp. 1542-1544. [Online].