Increased maternal serum free beta human chorionic gonadotrophin concentrations in Down's pregnancies: an artefactual finding?
Reynolds
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TM
D006063:Chorionic Gonadotropin / Q000097:blood*; D004314:Down Syndrome / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000097:blood*
D006063:Chorionic Gonadotropin