1393
Biopsies of oral hairy leukoplakia , an AIDS-associated lesion characterized by high-level EBV replication , were examined by immunohistochemistry using the BZ1 monoclonal antibody .
 protein: BZ1; protein: monoclonal antibody
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: BZ1; protein: monoclonal antibody