Effect of eltrombopag on platelet counts and bleeding during treatment of chronic idiopathic thrombocytopenic purpura: a randomised, double-blind, placebo-controlled trial. - Bussel, James B.; Provan, Drew; Shamsi, Tahir; Cheng, Gregory; Psaila, Bethan; Kavaleva, Lidia; Salama, Abdulgabar; Jenkins, Julian M.; Roychowdhury, Debasish; Mayer, Bhabita; Stone, Nicole; Arning, Michael (Lancet, 2009)