Insulin resistance (HOMA-IR) cut-off values and the metabolic syndrome in a general adult population: effect of gender and age: EPIRCE cross-sectional study - Gayoso-Diz, P; Otero-González, A; Rodriguez-Alvarez, M X; Gude, F; García, F; De Francisco, A; Quintela, A G (BMC Endocr Disord, 2013)