title: Proceedings of the international symposium of the EORTC-Heavy Particle Therapy Group. Villigen, Switzerland, 13-14 March 1987.
mesh_terms: D000818:Animals; D004601:Elementary Particles; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy*; D011882:Radiotherapy, High-Energy / Q000379:methods*