as published: Habl G, Hatiboglu G, Edler L, Uhl M, Krause S, Roethke M, Schlemmer HP, Hadaschik B, Debus J, Herfarth K: Ion Prostate Irradiation (IPI) - a pilot study to establish the safety and feasibility of primary hypofractionated irradiation of the prostate with protons and carbon ions in a raster scan technique. BMC cancer 2014, 14(1):202.
http://www.ncbi.nlm.nih.gov/pubmed/24641841