22378
The specificity of the insulin receptor ( InsR ) and insulin - like growth factor - 1 receptor ( IGF1R ) signaling pathways has been the focus of significant debate over the past few years .
 None
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:  
Answer:
 None