198
Tamoxifen , an oestrogen antagonist , has been given in some patients with CLL and Hodgkin's disease , with dramatic response in single cases.
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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:
 None