The SAM model of senescence : proceedings of the first International Conference on Senescence: the SAM model, Kyoto, 17-18 March 1994 / ed. Toshio TakedaThe senescence-accelerated mouse (SAM) : an animal model of senescence : proceedings of the 2nd International Conference on Senescence: the SAM Model, held in Sapporo, Japan between 21 and 23 July 2003 / editor-in-chief: Yasuyuki Nomura ; editors: Toshio Takeda, Yasunobu Okuma