18575
Heart function studied at different time points during the course of T3 treatment shows an initial improvement and then a gradual but progressive decline with time , which is prevented by Bzf co - treatment .
 Chemical: Bzf
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: Bzf