Does the Intensity of IGG4 Immunostaining Have a Correlation with the Clinical Presentation of Riedel’s Thyroiditis? - Simões, C. A.; Tavares, M. R.; Andrade, N. M. M.; Uehara, T. M.; Dedivitis, R. A.; Cernea, C. R. (Case Reports in Endocrinology, 2018)