Case series of acute arthritis during COVID-19 admission. Issue 4 (29th May 2020) - López-González, María-del-Carmen; Peral-Garrido, Maria Luisa; Calabuig, Irene; Tovar-Sugrañes, Ernesto; Jovani, Vega; Bernabeu, Pilar; García-Sevila, Raquel; León-Ramírez, Jose-Manuel; Moreno-Perez, Oscar; Boix, Vicente; Gil, Joan; Merino, Esperanza; et al.