Frequency of anti-heart autoantibodies (AHA) and of anti-intercalated-disk autoantibodies (AIDA) by immunofluorescence in patients with idiopathic recurrent acute pericarditis (IRAP) and in controls
↵* p=0.0001 versus non-inflammatory heart disease or ischaemic heart failure
↵† p=0.0001 versus normal subjects.