hypothyroidism and hyperthyroidismmethimazole for hyperthyroidismsubclinical hyperthyroidism treatmentautoimmune hyperthyroidismamiodarone hyperthyroidismhyperthyroidism goiterdiagnosis of hyperthyroidismcongenital hyperthyroidismiatrogenic hyperthyroidismhyperthyroidism and pregnancysecondary hyperthyroidismfactitious hyperthyroidism