Myelosis.
D001853:Bone Marrow / Q000473:pathology; D004920:Erythropoiesis; D006801:Humans; D007951:Leukemia, Myeloid / Q000473:pathology*; D008533:Megakaryocytes; D055728:Primary Myelofibrosis / Q000473:pathology; D012189:Retrospective Studies