<prompt> Most common myeloproliferative disorder isPolycythemia rubra veraCMLCLLMyelofibrosis  <response>: Examples of Myeloproliferative diseases are Polycythemia rubra vera, Myelofibrosis, and Essential thrombocytopenia. Here CML and CLL are not Myeloproliferative diseases and out the rest two Polycythemia is more common. Reference : Davidaon, 23rd Edition, page no : 969. 