Toronto's Mount Sinai Hospital offers first-trimester screening across Ontario.
Hoffman
Barry
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Johnson
Jo-Ann
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D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006786:Hospitals, Urban; D006801:Humans; D009864:Ontario; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis