Development and validation of a dynamic nomogram for predicting central lymph node metastasis in papillary thyroid carcinoma patients based on clinical and ultrasound features

Zhe Chen, Jia-Jia Wang, Jun-Bin Du, Jia-Fan Li, Ruo-Ting Zheng, Shu-Min Yuan, Ting Wu, Dong-Ming Guo, Yu-Xia Zhai