Phosphorus-31 NMR spectroscopy in patients with advanced neck tumors during radiotherapy - Becker, Markus; Schlemmer, Heinz-Peter; Bachert, Peter; Dietz, Andreas; Vanselow, Bernhard; Rudat, Volker; Knopp, Michael V.; Weidauer, Hagen; Wannenmacher, Michael; Kaick, Gerhard van (Proceedings of the International Society for Magnetic Resonance in Medicine seventh scientific meeting and exhibition ; Vol. 2, 1999)