charasteristics   n
median age   68.5
(range)   (46-93)
sex male 15
  female 15
tumor location tongue 10
  mandibular gingiva 6
  maxillary gingiva 5
  floor of the mouse 3
  buccal mucosa 6
differentiation well-differentiated 18
  moderately-differentiated 10
  poorly-differentiated 2
clinical stage I 5
  II 9
  III 9
   IV 7
Table 1: Characteristics of patients with oral squamous cell carcinoma.