Investigation of coronary vessels in microscopic dimensions by two- and three-dimensional NMR microscopic imaging in the isolated rat heart. Visualization of vasoactive effects of endothelin 1. - Bauer, W; Hiller, K; Roder, F; Neubauer, S; Fuchs, A; Boes, C; Lutz, R; Gaudron, P; Hu, K; Haase, A (Circulation, 1995)