Patient choice and the randomized controlled trial.
Hyett
J
J
Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK. jon@fetalmedicine.com
D004314:Down Syndrome / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D048208:Nuchal Translucency Measurement / Q000379:methods* / Q000592:standards; D010358:Patient Participation; D011247:Pregnancy; D016032:Randomized Controlled Trials as Topic