Affiliation: | (1) Department of Neurosurgery, Graduate School, Tokyo Medical and Dental University, Japan;(2) Department of Neurosurgery, Fujigaoka Hospital, Showa University, Yokohama;(3) Cytometry Group, Beckman Coulter K. K., Tokyo, Japan;(4) Department of Neurosurgery, Graduate School, Tokyo Medical and Dental University, Japan;(5) Department of Cell Biology, Tokyo Metropolitan Institute of Gerontology, Tokyo |