Developing the subspecialty of cardio-nephrology: The time has come. A position paper from the coordinating committee from the Working Group for Cardiorenal Medicine of the Spanish Society of Nephrology Javier Díez; Juan F. Navarro-González; Alberto Ortiz; Rafael Santamaría; Patricia de Sequera;

Risk factors associated with valvular calcification in patients with chronic kidney disease. Analysis of NEFRONA study Lidia Martínez Fernández; J. Emilio Sánchez-Alvarez; César Morís de la Tassa; José Joaquín Bande Fernández; Virtudes María; Elvira Fernández; Jose M. Valdivielso; Angels Betriu;

Hyperuricemia in patients with chronic kidney disease: When and what to treat? Marian Goicoechea; Rodrigo García-Marina;