1881
Immunohistochemistry was performed with anti- ZEBRA , anti- EA -restricted, anti- VCA antibodies and in situ hybridization with BHLF1/NotI oligoprobes on tumour samples .
 VCA, anti- ZEBRA, ZEBRA, EA, anti- EA -restricted, anti- VCA antibodies
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 VCA, anti- ZEBRA, ZEBRA, EA, anti- EA -restricted, anti- VCA antibodies