Development and validation of circulating tumor cells signatures for papillary thyroid cancer diagnosis: A prospective, blinded, multicenter study - Siyuan Xu; Jingning Cheng; Bojun Wei; Yang Zhang; Yang Li; Zongmin Zhang; Yang Liu; Ye Zhang; Rui Zhang; Kai Wang; Xiaolei Wang; Shaoyan Liu; et al. (Clinical and Translational Medicine, 2020)