2890
Only a handful of cases of ATRA - induced myositis in children have been reported , and none in the radiology literature .
 Chemical: ATRA; Disease: myositis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: ATRA; Disease: myositis