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2. Hyperthyroidism in patients over 65;Bartels;Geriatrics,1965
3. Hyperthyroidism in patients over sixty;Bartels;Geriatrics,1949
4. The impact of technology on clinical practice in Graves disease;Becker;Mayo Clin. Proc,1972
5. Current status of radioiodine (131I) treatment of hyperthyroidism;Becker,1982