20554
The data confirm the ability of abacavir to modify self - proteins and suggest that the molecular mechanism ( s ) of some abacavir - induced adverse reactions may require bioactivation .
 Chemical: abacavir; Chemical: abacavir
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: abacavir; Chemical: abacavir