Definition and evolution of the concept of sarcopenia Maria Luz Sanchez-Tocino; Secundino Cigarrán; Pablo Ureña; Maria Luisa González-Casaus; Sebastian Mas-Fontao; Carolina Gracia-Iguacel; Alberto Ortíz; Emilio Gonzalez-Parra;

Nonvalvular atrial fibrillation in patients undergoing chronic hemodialysis. Should dialysis patients with atrial fibrillation receive oral anticoagulation? Carmen Sánchez-González; Jose Antonio Herrero Calvo;

A cost-effectiveness analysis of the introduction of a specialised consultation with duplex ultrasound assessment prior to vascular access surgery for haemodialysis Eduardo Mateos Torres; Silvia Collado Nieto; Maria Dolores Arenas Jimenez; Mónica Lacambra Peñart; Lidia Marcos Garcia; Albert Clará Velasco;