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The effect of smoking in pregnancy on maternal serum alpha-fetoprotein, unconjugated oestriol, human chorionic gonadotrophin, progesterone and dehydroepiandrosterone sulphate levels. |
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| Authors: | H S Cuckle N J Wald J W Densem P Royston G J Knight J E Haddow G E Palomaki |
| Affiliation: | Department of Environmental and Preventive Medicine, St Bartholomew's Hospital Medical College, London. |
| Abstract: | |
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