Figure 1From: Effectiveness of adjuvant radiotherapy in patients with oropharyngeal and floor of mouth squamous cell carcinoma and concomitant histological verification of singular ipsilateral cervical lymph node metastasis (pN1-state) - A prospective multicenter randomized controlled clinical trial using a comprehensive cohort design According to Bier (1982) description of tumor position follows its relation to the occlusal plane, canine and the last molar in transversal, saggital and axial projection.Back to article page