Sakae Takeji | Institute of Clinical Medicine, University of Tsukuba 305, Japan

Institute Of Applied Physics University Of Tsukuba

Institute Of Clinical Medicine University Of Tsukub

Proton Medical Research Center (PMRC), Tsukuba Univ.

Institute of Basic Medical Science, University of Tsukuba

Institute Of Applied Physics University Of Tsukuba

Institute Of Applied Physics University Of Tsukuba

Institute of Applied Physics, University of Tsukuba 305, Japan

Institute of Applied Physics, University of Tsukuba 305, Japan

Institute of Basic Medical Sciences, University of Tsukuba 305, Japan

Institute of Clinical Medicine, University of Tsukuba 305, Japan