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Oncogene amplification correlates with dense lymphocyte infiltration in human breast cancers : a role for hematopoietic growth factor release by tumor cells ?
 cell type: tumor cells; protein: hematopoietic growth factor
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: tumor cells; protein: hematopoietic growth factor