Increase of circulating endothelial progenitor cells in patients with coronary artery disease after exercise-induced ischemia. - Adams,V.; Lenk,K.; Linke,A.; Lenz,D.; Erbs,S.; Sandri,M.; Tarnok,A.; Gielen,S.; Emmrich,F.; Schuler,G.; Hambrecht,R. (Arterioscler Thromb Vasc Biol, 2004)