20694
To further assess the etiology of his symptoms , he underwent a pharmacologic stress test with regadenoson followed by technetium 99 m sestamibi .
 Chemical: regadenoson; Chemical: technetium 99 m sestamibi
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: regadenoson; Chemical: technetium 99 m sestamibi