@article{Perez-Calvo:60959,
      author        = "Perez-Calvo, Juan Ignacio and Josa-Laorden, Claudia and
                       Rubio-Gracia, Jorge and Giménez López, Ignacio",
      title         = "{Comorbidities in heart failure with mid-range ejection
                       fraction}",
      year          = "2017",
}