Coronary stenting with the sirolimus-eluting stent in patients with restenosis after intracoronary brachytherapy: results from the prospective multicentre German Cypher Stent Registry - Zahn, Ralf; Hamm, Christian; Zeymer, Uwe; Richardt, Gert; Kelm, Malte; Levenson, Benny; Bonzel, Tassilo; Tebbe, Ulrich; Sabin, Georg; Nienaber, Christoph; Pfannebecker, Thomas; Senges, Jochen (Clinical research in cardiology, 2010)