title: Determination of myocardial blood flow by videodensitometry. A preliminary report.
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods*; D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000503:physiopathology*; D003097:Collateral Circulation; D017023:Coronary Angiography; D003326:Coronary Circulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged