Exercise-induced changes in expression and activity of proteins involved in insulin signal transduction in skeletal muscle: differential effects on insulin-receptor substrates 1 and 2 - Chibalin, A V; Yu, M; Ryder, J W; Song, X M; Galuska, D; Krook, A; Wallberg-Henriksson, H; Zierath, J R (Proc Natl Acad Sci USA, 2000)