14795
Participants were tested at baseline , at 1 , 2 . 5 and 4 h after a single acute dose and again after receiving 30 days of treatment .
 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