@article{20d5c12b4234453799aa2ccc57c913e5,
title = "Genetic and environmental influences on exercise participation: a comparative study of twin cohorts in six countries",
author = "J.H. Stubbe and D.I. Boomsma and J.R. Harris and J Kaprio and R.J. Rose and U. Kujala and N.G. Martin and B. Cornes and N.L. Pedersen and K. Kyvik and A. Skytthe and \{de Geus\}, J.C.N.",
year = "2005",
language = "English",
volume = "8",
pages = "421",
journal = "Twin Research and Human Genetics",
issn = "1832-4274",
publisher = "Cambridge University Press",
number = "4",
}