11277
Peripheral blood mononuclear cells ( PBMCs ) from 23 healthy donors and 13 patients with metastatic colorectal cancer ( mCRC ) treated with cetuximab were tested for Fc gamma R polymorphisms and cetuximab - mediated ADCC .
 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