1. Poorly differentiated carcinoma;Sobrinho–Simões,2004
2. Histologic typing of thyroid tumours;Hedinger,1988
3. Tumors of the thyroid gland. Atlas of tumor pathology;Rosai,1992
4. Tumeurs malignes du corps thyroide. Problèmes de diganotic histopathologique. A propos de 692 lèsions recueilles par le groupe coopèrateur des Cancers du Corps Thyroïde de l'O.E.R.T.C.;Cabanne;Ann Anat Pathol,1974
5. Poorly differentiated carcinoma of the thyroid. A clinicopathologic entity for a high-risk group of papillary and follicular carcinomas;Sakamoto;Cancer,1983