@article{NavarreteVillanueva:148093,
      author        = "Navarrete Villanueva, David and Gómez Cabello, Alba and
                       Marín Puyalto, Jorge and Moreno, Luis Alberto and Vicente
                       Rodríguez, Germán and Casajús, José Antonio",
      title         = "{Frailty and physical fitness in elderly people: a
                       systematic review and meta-analysis}",
      year          = "2021",
}