Cite

    P. Suton et al.. “Prognostic significance of extracapsular spread of lymph node metastasis from oral squamous cell carcinoma in the clinically negative neck.” International journal of oral & maxillofacial surgery, vol. 46, no. 6, n.d., pp. 669–675. http://access.bl.uk/ark:/81055/vdc_100045734197.0x00004b