1181
In this study we aimed at studying the involvement of the brain RAS in the cardiac reactivity to the beta - adrenoceptor ( beta - AR ) agonist isoproterenol ( Iso ) .
 Chemical: isoproterenol; Chemical: Iso
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: isoproterenol; Chemical: Iso