Circulation system
- └ Atrial muscle cell identification
 - └ Ventricular muscle cell identification
 - └ Cardiac fibroblasts cell identification
 - └ Cardiac microvascular endothelial cell identification
 - └ Aortic endothelial cell identification
 - └ Aortic smooth muscle cell identification
 - └ Coronary artery endothelial cell identification
 - └ Saphenous vein smooth muscle cell identification
 
