Analysis of intrathyroidal cytokine production in thyroid autoimmune disease: thyroid follicular cells produce interleukin-1 alpha and interleukin-6 - Grubeck-Loebenstein, B; Buchan, G; Chantry, D; Kassal, H; Londei, M; Pirich, K; Barrett, K; Turner, M; Waldhausl, W; Feldmann, M (Clin Exp Immunol, 1989)