18905
Discovery of Novel Dual Inhibitors of the Wild - Type and the Most Prevalent Drug - Resistant Mutant , S31N , of the M2 Proton Channel from Influenza A Virus .
 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