Hundley WG, Hamilton CA, Clarke GD, Hillis LD, Herrington DM, Lange RA, Applegate RJ, Thomas MS, Payne J, Link KM, Peshock RM. Visualization and functional assessment of proximal and middle left anterior descending coronary stenoses in humans with magnetic resonance imaging. Circulation. 1999 Jun 29; 99(25):3248-54.