Fig. 2From: The Myocardial Profile of the Cytosolic Isozymes of Creatine Kinase Is Apparently Not Related to Cyanosis in Congenital Heart DiseaseCorrelation of age with tissue CK (A), and CKMB (B) activities. Closed circles, cyanotic; open circles, acyanotic. Linear regression analysis: (A) r = 0.72; p = 0.00005; (B) r = 0.66; p = 0.0004.Back to article page