447
278 ( 57 . 9 % ) cases were in the group aged 21 - 50 , followed by 102 ( 21 . 3 % ) , 79 ( 16 . 5 % ) and 21 ( 4 . 4 % ) cases in the group aged 51 - 70 , 0 - 20 , and > = 71 , respectively .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities:  
Answer:
 None