Adipose-specific peroxisome proliferator-activated receptor gamma knockout causes insulin resistance in fat and liver but not in muscle - He, W; Barak, Y; Hevener, A; Olson, P; Liao, D; Le, J; Nelson, M; Ong, E; Olefsky, J M; Evans, R M (Proc Natl Acad Sci USA., 2003)