title: [Perception of benefits, limit and social assistance on the elderly to accomplish physical activity].
authors.affiliation: Servicio de Nefrología, Hospital Infantil de Tlaxcala, Mexico.
authors.forename: Concepción
authors.initials: C
authors.lastname: Porras-Juárez
authors.forename: Ignacio
authors.initials: I
authors.lastname: Grajales-Alonso
authors.forename: María Concepción
authors.initials: MC
authors.lastname: Hernández-Cruz
authors.forename: Ma Magdalena
authors.initials: MM
authors.lastname: Alonso-Castillo
authors.forename: Inés
authors.initials: I
authors.lastname: Tenahua-Quitl