Recommendations of the Spanish Society of Nephrology for the management of mineral and bone metabolism disorders in patients with chronic kidney disease: 2021 (SEN-MM) José-Vicente Torregrosa; Jordi Bover; Mariano Rodríguez Portillo; Emilio González Parra; María Dolores Arenas; Francisco Caravaca; María-Luisa González Casaus; Alejandro Martín-Malo; Juan Francisco Navarro-González; Víctor Lorenzo; Pablo Molina; Minerva Rodríguez; Jorge Cannata Andia;

Vascular renal resistance index is not related with prognosis in kidney transplantation Enoc Merino García; Francisco José Borrego Utiel; Manuel Polaina Rusillo; María José García Cortés;

Preoperative mapping and multidisciplinary team are the key to success of arteriovenous access for hemodialysis Bruno Fraga Dias; Joana Freitas; Fernanda Silva; Isabel Fonseca; Paulo Almeida; José Queirós;