%0 Journal Article %T Remarkable Presentation: Anaplastic Thyroid Carcinoma Arising from Chronic Hyperthyroidism %A Habib G. Zalzal %A Jeffson Chung %A Jessica A. Perini %J Archive of "Case Reports in Endocrinology". %D 2018 %R 10.1155/2018/7261264 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5899845/