Since the last meeting "Myocardial Biopsy - Diagnostic Signifi- cance" was held under the auspices of the International Society and Federation of Cardiology (ISFC) in Munich, many new data and new aspects have been developed in the field of myocardial dis- eases. Most importantly, the classification of cardiomyopathies and specific heart muscle diseases, as described in the report of the WHO-ISFC task force (see reference 1 in the Introduction), is...