Multisystem inflammatory syndrome in children and SARS-CoV-2 variants: a two-year ambispective multicentric cohort study in Catalonia, Spain

Rosa Pino, Jesús M. Antoñanzas, Fernando Paredes-Carmona, Aida Perramon‐Malavez, Jacques G. Rivière, Maria Coma, A. Martínez, Francesc Ripoll, Núria Farré López, Romina Conti, Pere Sala, Montserrat Ruíz, Sònia Brió, Marc García-Lorenzo, Maria Esteller, Clara Carreras‐Abad, Carlos Herrero-Hernando, Stephan Otto Schneider, Anna Gatell, Isabel Aguilar, Javier Cantero, Gloria Ruiz, Teresa Fenollosa, Zulema Lobato, Pilar Villalobos, Emiliano Mora, Jordi Antón, Núria Visa-Reñé, Pere Soler‐Palacín, Olga Calavia, Cristina Esquirol-Herrero, Borja Guarch-Ibáñez, Juan José García‐García, Ermengol Coma, Francesc Fina, Clara Prats, Antoni Soriano‐Arandes