The incidence of thyroid disorders in the community: a twenty-year follow-up of the Whickham survey - Vanderpump, MP J; Tunbridge, WM G; French, J M; Appleton, D; Bates, D; Clark, F; Grimley Evans, J; Hasan, D M; Rodgers, H; Tunbridge, F; Young, E T (Clin Endocrinol, 1995)