Chronic Recurrent Idiopathic Pericardial Effusion in a 53‐Year‐Old With Down Syndrome: A Case Report. - Izzo, Rossana; Morello, Eugenia; Sarzilla, Simone; Pepino, Aurora; Duchini, Mattia; Campanale, Daniela; Menafoglio, Andrea; Di Simone, Angelo; Demarchi, Andrea (Clinical Case Reports, 2025)