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alpha2M promotes the protease - mediated degradation of alpha2M / Abeta complexes and contributes to clearance of Abeta from the brain ( discussed in paragraph 4 ) [ 138 , 139 ] .
 Anatomy: brain
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: brain