Postoperative radiation for squamous cell carcinoma metastatic to cervical lymph nodes from an unknown primary site: outcomes and patterns of failure.
Head Neck. 1998 Dec;20(8):674-81. doi: 10.1002/(sici)1097-0347(199812)20:8<674::aid-hed3>3.0.co;2-h.
Head Neck. 1998.
PMID: 9790287