Impaired glucose tolerance as a disorder of insulin action. Longitudinal and cross-sectional studies in Pima Indians - Lillioja, S; Mott, D M; Howard, B V; Bennett, P H; Yki-Jarvinen, H; Freymond, D; Nyomba, B L; Zurlo, F; Swinburn, B; Bogardus, C (N Engl J Med, 1988)