4509
A reproducible model for producing diffuse myocardial injury ( epinephrine infusion ) has been developed to study the cardioprotective effects of agents or maneuvers which might alter the evolution of acute myocardial infarction .
 myocardial injury, epinephrine, myocardial infarction
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 myocardial injury, epinephrine, myocardial infarction