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2. Natural history, treatment, and course of papillary thyroid carcinoma;DeGroot;J Clin Endocrinol Metab,1990
3. Well-differentiated thyroid carcinoma and the results of various modalities of treatment;Samaan,1992
4. Did extent of primary surgical resection affect mortality or local recurrence rates in 1,848 papillary thyroid cancers?;Hay,1994