3554
Although indomethacin has been implicated as a possible cause of aplastic anemia on the basis of a few clinical observations , its role has not been definitely established .
 Chemical: indomethacin; Disease: aplastic anemia
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: indomethacin; Disease: aplastic anemia