%0 Journal Article %T Ultrasound features of extranodal extension in the metastatic cervical lymph nodes of papillary thyroid cancer: a case-control study %A Fangxuan Li %A Jiali Mu %A Jing Tian %A Juntian Liu %A Sheng Zhang %A Xiaofeng Liang %J Archive of "Cancer Biology & Medicine". %D 2018 %R 10.20892/j.issn.2095-3941.2017.0092 %K Extranodal extension %K papillary thyroid cancer %K ultrasound %K lymph node metastasis %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5994548/