Heinz Ludwig, Zdenek Adam, Elena Tóthová, Roman Hajek, Boris Labar, Miklós Egyed, Ivan Spicka, Heinz Gisslinger, Johannes Drach, Ingrid Kuhn, Axel Hinke and Niklas Zojer (2010) “Thalidomide maintenance treatment increases progression-free but not overall survival in elderly patients with myeloma”, Haematologica. Pavia, Italy, 95(9), pp. 1548-1554. doi: 10.3324/haematol.2009.020586.