Thyrotropin and thyroid antibodies as predictors of hypothyroidism: a 13-year, longitudinal study of a community-based cohort using current immunoassay techniques - Walsh, J P; Bremner, A P; Feddema, P; Leedman, P J; Brown, S J; O’Leary, P (J Clin Endocrinol Metab, 2010)