15362
Lead at 2 . 5 and 5 . 0 mu M induced aberrant MH - II surface expression through increased MII exocytosis and increased autophagosome formation in Raw 267 . 4 cells .
 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