VOL. XX, N. 4, 2004, OCTOBER-DECEMBER	page
Review Paper
Wieslaw Maciszewski, Waldemar Scharf Particle Accelerators for Radiotherapy. Present Status and Future abstract	137
Original Papers
Federica Saiani, Marco Galelli, Piero Feroldi A comparison of Monte Carlo and tg60 algorithm calculation in the dosimetry of 90Sr/90Y seed source trains for intravascular brachytherapy abstract	147
Fýrat Hardalac, Necaattin Barýþçý, Uçman Ergun Classification of aorta insufficiency and stenosis using mlp neural network and Neuro-fuzzy system abstract	155