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Oestrogen receptors ( ER ) are present in neoplastic lymphoid cells and have been considered a physiological marker of growth rate or differentiation.
 protein: ER; protein: Oestrogen receptors; cell type: neoplastic lymphoid 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:
 protein: ER; protein: Oestrogen receptors; cell type: neoplastic lymphoid cells