570
The disorder exhibits considerable allelic heterogeneity and , at the end of 1998 , more than 150 different base changes were recorded in 24 different populations and ethnic groups in 15 countries worldwide .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None