@article{Diaz:86171,
      author        = "Diaz, E. and Poblador-Pou, B. and Gimeno-Feliu, L.A. and
                       Calderon-Larrañaga, A. and Kumar, B.N. and Prados-Torres,
                       A.",
      title         = "{Multimorbidity and its patterns according to immigrant
                       origin. A nationwide register-based study in Norway}",
      year          = "2015",
}