%0 Journal Article %T Retraction Note to: Ultrasound Elastography supplement assessing nodal status of magnetic resonance imaging staged cervical N0 patients with nasopharyngeal carcinoma %A Fei Han %A Feifei Zuo %A Jian Li %A Xindan Chen %A Yong Li %A Yunxian Mo %J Archive of "Cancer Imaging". %D 2019 %R 10.1186/s40644-019-0242-4 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6676629/