1853
Any respectative material ( class 0 ) was not obtained from 334 patients ( 4 . 2 % ) , class I - II findings belonged to 6m141 patients ( 76 . 7 % ) , 950 patients ( 11 . 9 % ) were classified as class HII and IV , 578 patients ( 7 . 2 % ) as class V .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None