исследовательская статья
Concordance between tools for the detection of community-dwelling frail adults: Study protocol
Itziar Vergara, Mónica Machón, Kalliopi Vrotsou, Nerea Egües, Andoni Bueno, Jazmina Nuñez, Iñaki MartÃn-Lesende, Ascensión MartÃn, EstefanÃa Carrasco, Ana DÃez