Low serum 25-hydroxyvitamin D is associated with increased risk of the development of the metabolic syndrome at five years: results from a national, population-based prospective study (The Australian Diabetes, Obesity and Lifestyle Study: AusDiab) - Gagnon, C; Lu, Z X; Magliano, D J; Dunstan, D W; Shaw, J E; Zimmet, P Z; Sikaris, K; Ebeling, P R; Daly, R M (J Clin Endocrinol Metab, 2012)