Effect of selenium on thyroid autoimmunity and regulatory T cells in patients with Hashimoto's thyroiditis: A prospective randomized‐controlled trial. - Hu, Yifang; Feng, Wenwen; Chen, Huanhuan; Shi, He; Jiang, Lin; Zheng, Xuqin; Liu, Xiaoyun; Zhang, Wensong; Ge, Yaoqi; Liu, Yun; Cui, Dai (CTS: Clinical & Translational Science, 2021)