Washington State Twin Registry
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  • About
    • Why Twins?
    • Our Story
      • Why is the Twin Registry Special?
    • Demographics
    • Who we are
    • What we do
      • Outreach
    • Privacy
  • COVID-19
  • For Twins
    • Why are twins special?
    • Zygosity
      • Identical vs Fraternal Twins
      • How zygosity is determined
      • Zygosity determination done by the Twin Registry
      • The Importance of Zygosity Testing
      • Zygosity Testing Companies
      • Common Misconceptions about Zygosity
    • Joining the Washington State Twin Registry
      • Frequently Asked Questions about Joining
        • Why join the Washington State Twin Registry?
        • How do you know I’m a twin?
        • Am I eligible to join the Registry?
        • Completing the Enrollment Survey
        • What happens next?
        • Participating in studies
        • Personal Information and Privacy
    • Frequently Asked Questions about Twins
    • Current Studies
    • Completed Studies
    • Resources for Twins
  • For Parents
    • Joining the Washington State Twin Registry
    • Current Studies for Kids
    • Resources for Parents
      • Multiples Groups
      • Online Resources For Parents
  • For Researchers
    • Our Impact
    • Demographics
    • Annual Reports
    • Who we are
    • Policies & Procedures for Accessing WSTR data
    • Available Data
    • Grants
    • Publications
  • Additional Resources
    • Other Twin Registries
    • Books
      • Fiction books for adults
      • Non-Fiction books
      • Fiction books for children and teens
      • Books for very young children
      • Books for Parents of Twins
    • Movies about Twins
      • Movies about Twins
      • Documentaries about twins
    • Videos
  • Contact Us

Who we are

Director: Glen Duncan, PhD

Assistant Director: Elizabeth Blue, PhD

Scientific Operations Manager: Ally Avery, MS

Staff Scientist: Siny Tsang, PhD

Research Coordinator: Shelby Tarutis, MPH

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