@article{Barker:78285,
      author        = "Barker, A.R. and Gracia-Marco, L. and Ruiz, J.R. and
                       Castillo, M.J. and Aparicio-Ugarriza, R. and
                       González-Gross, M. and Kafatos, A. and Androutsos, O. and
                       Polito, A. and Molnar, D. and Widhalm, K. and Moreno, L.A.",
      title         = "{Physical activity, sedentary time, TV viewing, physical
                       fitness and cardiovascular disease risk in adolescents: The
                       HELENA study}",
      year          = "2018",
}