<prompt> Cardiomyopathy may be seen in all except-Duchenne muscular dystrophyFriedreichs ataxiaType II glycogen storageAlkaptonuria  <response>: Etiological classification of cardiomyopathy:A. Primary myocardial involvementIdiopathic D, R, HFamilial D, R, HEosinophilic endomyocardial disease REndomyocardial fibrosis RB Secondary myocardial involvement 