Prevalence, metabolic features, and prognosis of metabolically healthy obese Italian individuals: the Cremona Study - Calori, G; Lattuada, G; Piemonti, L; Garancini, M P; Ragogna, F; Villa, M; Mannino, S; Crosignani, P; Bosi, E; Luzi, L; Ruotolo, G; Perseghin, G (Diabetes Care, 2011)