Radioprotection by Cu(II) Chelates of Nicotinyl-L-Aminoacidates M. Malakyan, S. Bajinyan, A. Boyajyan, D. Yeghiazaryan, V. Matosyan and V. Tonoyan Radioprotection, 43 5 (2008) 160 Published online: 03 September 2008 DOI: 10.1051/radiopro:2008597