Autoantibodies Against Proteins Previously Associated With Autoimmunity in Adult and Pediatric Patients With COVID-19 and Children With MIS-C oleh Peter D. Burbelo, Riccardo Castagnoli, Riccardo Castagnoli, Chisato Shimizu, Ottavia M. Delmonte, Kerry Dobbs, Valentina Discepolo, Andrea Lo Vecchio, Alfredo Guarino, Francesco Licciardi, Ugo Ramenghi, Emma Rey-Jurado, Cecilia Vial, Gian Luigi Marseglia, Amelia Licari, Daniela Montagna, Camillo Rossi, Gina A. Montealegre Sanchez, Karyl Barron, Blake M. Warner, John A. Chiorini, Yazmin Espinosa, Loreani Noguera, Lesia Dropulic, Meng Truong, Dana Gerstbacher, Sayonara Mató, John Kanegaye, Adriana H. Tremoulet, Pediatric Emergency Medicine Kawasaki Group, Eli M. Eisenstein, Helen C. Su, Luisa Imberti, Maria Cecilia Poli, Maria Cecilia Poli, Jane C. Burns, Luigi D. Notarangelo, Jeffrey I. Cohen, Naomi Abe, Amy Bryl, J. Joelle Donofrio-Odmann, Atim Ekpenyong, Michael Gardiner, David J. Gutglass, Margaret B. Nguyen, Stacey Ulrich