208231
IGI are commonly performed manually by physicians operating instruments , such as needles , based on medical images and are used in most medical fields , particularly in the specialty area of interventional radiology .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None