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We describe a slide assay that allows the demonstration of antigens localized in the nucleus from isolated white blood cells as well as from single tumor cells derived from malignant effusions .
 cell type: isolated white blood cells; protein: antigens; cell type: single tumor cells
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:
 cell type: isolated white blood cells; protein: antigens; cell type: single tumor cells