1034
Recent development of primary cultures of human megakaryocytes and the molecular cloning of genes that are specific to this lineage offer the possibility of getting some insights into the genetic mechanisms that control megakaryocytopoiesis .
 cell line: human megakaryocytes; cell line: primary cultures
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: human megakaryocytes; cell line: primary cultures