Impact of high-risk classification by FISH: an eastern cooperative oncology group (ECOG) study E4A03. - Jacobus SJ; Kumar S; Uno H; Van Wier SA; Ahmann GJ; Henderson KJ; Callander NS; Williams ME; Siegel DS; Greipp PR; Rajkumar SV; Fonseca R (British journal of haematology, 2011)