A challenge to solve "Lichtman's riddles".
Civin
C I
CI
D001853:Bone Marrow / Q000473:pathology; D006410:Hematopoiesis; D006412:Hematopoietic Stem Cells / Q000473:pathology; D006801:Humans; D007951:Leukemia, Myeloid / Q000145:classification* / Q000473:pathology*