28148
Pregnancy Outcome following in utero Exposure to Hydroxychloroquine : A prospective comparative observational study .
 Chemical: Hydroxychloroquine
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: Hydroxychloroquine 
Answer:
 Chemical: Hydroxychloroquine