537
The potential clinical usefulness of these CL assays was suggested by the ability of both monocytes and IFN-U937 cells to respond to red cells , platelets or granulocytes sensitized with sera from pregnant women whose babies had either haemolytic disease of the newborn ( HDN ), alloimmune thrombocytopenia or alloimmune neutropenia respectively.
 cell line: IFN-U937 cells; cell type: red cells; cell type: monocytes; cell type: platelets; cell type: granulocytes
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 line: IFN-U937 cells; cell type: red cells; cell type: monocytes; cell type: platelets; cell type: granulocytes