tokens: The first group of sequential BMB showed a significant progress to myelofibrosis in so - called " Chronic Megakaryocytic - Granulocytic Myelosis " - - CMGM - , which corresponds to Agnogenic Myeloid Metaplasia - AMM - in 72 . 4 % ( 21 / 29 patients ) , as well as in CML with megakaryocytic increase - CML . MI - in 39 . 2 % ( 20 / 51 ) .