Endovascular gamma-radiation after angioplasty of femoropopliteal de-novo stenoses to prevent restenosis in patients with arterial occlusive disease: interim results of a prospective, randomized controlled trial. - Krueger,K.; Bendel,M.; Landwehr,P.; Stützer,H.; Zaehringer,M.; Lackner,K. (Supplement to Radiology, 2001)