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June 22, 2017; 129 (25)

Cover image expansion

Cytospin preparation after 7-day culture of the novel human megakaryocyte progenitor (MegP) in liquid medium (May-Giemsa staining). Progeny of MegPs have distinct morphological features of megakaryocytes, such as polyploidy and bleb formation. See the article by Miyawaki et al on page 3332.