Morphometric analysis of biologic processes.
D000818:Animals; D003584:Cytological Techniques; D004727:Endothelium / Q000648:ultrastructure; D006352:Heart Ventricles / Q000648:ultrastructure; D008433:Mathematics; D008854:Microscopy, Electron / Q000379:methods*; D009206:Myocardium / Q000648:ultrastructure; D010210:Papillary Muscles / Q000648:ultrastructure; D051381:Rats; D013223:Statistics as Topic