Twin Registries of the World

Denmark

Danish Twin Registry

England  

St Thomas UK Adult Twin Registry

Finland

The Finnish Twin Cohort Study

Italy

Italian Twin Registry

Netherlands

Netherlands Twin Register (NTR)

Sri Lanka

Sri Lankan Twin Registry

Sweden

Swedish Twin Registry

U.S.A

The Southern California Twin Project

National Academy of Sciences – National Research Council (NAS-NRC) Twin Registry

Northern California Twin Registry

The Massachusetts Twin Registry

Vietnam Era Twin Registry


Twin Member Satisfaction Survey
Annual Report 2008 released

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