TY JOUR TI The Main Directions of Clinical Application of Modern Proton Therapy KW proton therapy KW oncology KW medical indications KW clinical results KW randomized clinical trials JO Medical Radiology and radiation safety AU Samoylov, A.S. AU Smirnova, Z.Z. AU Klimanov, V.A. AU Yakovlev, V.V. AU Shulepova, L.I. AU Udalov, Y.D. PY 2019 IS 64 PB Federal Medical Biological Agency of Russia