junctional structures formed by two parts of the plasma membrane of the same cardiac muscle cell were observed in ventricular myocardium of : a ) patients with neoplasms , aortic valvular disease or idiopathic hypertrophic subaortic stenosis and b ) dogs subjected to prolonged normothermic anoxic cardiac arrest .
C1260873
aortic valvular disease
C0018787
cardiac