3605
Acute megakaryoblastic leukemia ( AML-M7 ) and transient myeloproliferative disorder in Down's syndrome ( TMD ) are characterized by rapid growth of abnormal blast cells which express megakaryocytic markers .
 megakaryocytic markers, abnormal blast cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 megakaryocytic markers, abnormal blast cells