Down Syndrome

• West Coast OB/GYN — San Diego, California, United States
• AD Williams Laboratory — Atlanta, Georgia, United States
• Prentice Women's Hospital — Chicago, Illinois, United States
• William Beaumont Hospital — Royal Oak, Michigan, United States

• Natera, Inc — Redwood City, California, United States

Not specified

• The Children's Hospital — Aurora, Colorado, United States

• East Bay Perinatal Medical Associates — Oakland, California, United States
• Prenatal Diagnosis of Northern California — Sacramento, California, United States
• University of California - San Diego — San Diego, California, United States
• University of California - San Francisco — San Francisco, California, United States

• Kyorin Eye Center — Mitaka, Tokyo, Japan

• Department of Medical Genetics, National Taiwan University Hospital — Taipei, Taiwan

Not specified

• Institut Jerome Lejeune — Paris, France

• Institut Jerome Lejeune — Paris, France
• Laboratoire d'Immunologie Biologique (Unité INSERM U580) — Paris, France