Topoisomerase-based chemotherapy in adults with relapsed or refractory pediatric-type sarcomaPO426Hartmann, J.Kraus, S.Weisel, K.Author information1Universitätsklinikum Tübingen, Med. Klinik II, Tübingen, DeutschlandOnkologie 33:p 186-187, February 2010.Copyright © 2010 S. Karger AG, Basel