The units based on political theory and chosen by countries under which their governmental power is organized and administered to their citizens.

Activities concerned with governmental policies, functions, etc.

Agents that affect the rate or intensity of cardiac contraction, blood vessel diameter, or blood volume.

The restoration of blood supply to the myocardium. (From Dorland, 28th ed)

Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.