Factors Responsible for Glucose Intolerance in Japanese Subjects with Impaired Fasting Glucose - Izuka, M; Fukushima, M; Taniguchi, A; Nakai, Y; Suzuki, H; Kawakita, T; Kawamata, S; Kajimoto, O; Tsuda, K; Nagaki, N; Murakami, M; Seino, Y (Hormone and Metabolic Research, 2007)