International Society for Twin Studies


The International Society for Twin Studies (ISTS) is an international, nonpolitical, nonprofit, multidisciplinary scientific organization. Its purpose is to further research and public education in all fields related to twins and twin studies, for the mutual benefit of twins and their families and of scientific research in general. The Society was founded in Rome in 1974.

View the Declaration of Rights and Statement of Needs of Twins and Higher Order Multiples.

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