Serum triidothyronine 7–15 years after fractionated low dose radioiodine therapy of thyrotoxicoses - Herrmann, J; Schaps, D; Rusche, H. J; Berger, M; Krüskemper, H. L; Mühlen, A. v. z; Hackenberg, K; Reinwein, D (Clin. Endocrinol, 1975)