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;

Etelcalcetide: What we know eight years since its approval Pedro Freitas; Luciano Pereira;

Differences in dialysis modality choice between immigrant and native populations in Barcelona, Spain María Dolores Arenas-Jiménez; Jose Luis Fernandez-Martin; Isabel Galcerán Herrera; Marisol Fernández-Chamarro; Guillermo Pedreira-Robles; Silvia Collado Nieto; Julia Farrera Núñez; Eva Rodríguez García; Alicia Moreno Rodríguez; Laura Morro Fernández; Marta Crespo Barrio; Julio Pascual Santos;