23677
This up - regulation of beta 1AR action was eliminated with 17 beta - estradiol addition to the media , directly implicating this hormone as a regulator of beta 1AR expression .
 Chemical: 17 beta - estradiol
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: 17 beta - estradiol 
Answer:
 Chemical: 17 beta - estradiol