title: The constant search for indices of coronary flow and perfusion.
mesh_terms: D001783:Blood Flow Velocity; D017023:Coronary Angiography / Q000379:methods; D003326:Coronary Circulation / Q000502:physiology*; D015150:Echocardiography, Doppler / Q000379:methods; D006801:Humans; D017202:Myocardial Ischemia / Q000175:diagnosis*; D012720:Severity of Illness Index