179
A total of 57 patients with Hodgkin ' s disease limited to above the diaphragm ( Stages I and II , A and B ) were treated with radiation therapy alone at the University of Florida between 1964 and 1974 .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None