in order to determine the characteristics of the interstitial fibrotic change of the myocardium in cases with viral or idiopathic myocarditis , right ventricular endomyocardial biopsy findings in 9 cases where serial endomyocardial biopsy had been performed at the acute ( 5-10 days after the onset of the disease ) , subacute ( 11-21 days ) and convalescent stages ( 22-167 days ) and in 1 case at the acute stage were analyzed .
C0027061
myocardium
C0189785
endomyocardial biopsy