serial studies of bone marrow megakaryocyte ploidy after the induction of acute , severe thrombocytopenia ( platelet count , less than 0.05 x 10 ( 6 ) microl ) demonstrated no detectable change in the ploidy distribution at 12 , 24 , and 36 hours after the onset of thrombocytopenia .
C0005953
bone marrow
C0025166
megakaryocyte