Julie Mondet, Ji-Hye Park, Audrey Menard, Christophe Marzac, Serge Carillo, Emmanuel Pourcelot, Francois Girodon, Xenia Cabagnols, Laurence Lodé, Nuria Socoro, Martine Chauvet, Claude-Eric Bulabois, Pascale Cony-Makhoul, Selim Corm, Jean-Yves Cahn, Pascal Mossuz. Endogenous megakaryocytic colonies underline association between megakaryocytes and calreticulin mutations in essential thrombocythemia. Haematologica 2015;100(5):e176-e178; https://doi.org/10.3324/haematol.2014.118927.