Mitochondrial haplogroup N9a confers resistance against type 2 diabetes in Asians - Fuku, N; Park, K S; Yamada, Y; Nishigaki, Y; Cho, Y M; Matsuo, H; Segawa, T; Watanabe, S; Kato, K; Yokoi, K; Nozawa, Y; Lee, H K; Tanaka, M (Am J Hum Genet, 2007)