Authors: Marta Marí-Almirall, Clara Cosgaya, Cristina Pitart, Joaquim Viñes, Laura Muñoz, Irene Campo, Anna Cuscó, Laura Rodríguez-Serna, Gemina Santana, Ana Del Río, Olga Francino, Pilar Ciruela, Isabel Pujol, Frederic Ballester, Francesc Marco, José Antonio Martínez, Álex Soriano, Jordi Vila, Ignasi Roca, the MERCyCAT Study Group.