484
The records from 1948 through 1967 of 344 previously untreated patients with squamous cell carcinoma of the oral cavity , oropharynx , supraglottic larynx and hypopharynx who had clinically positive cervical lymph node metastases staged N1 , N2A , or N2B , and whose initial neck treatment consisted of external radiation therapy alone were reviewed .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None