Reconstitution of Cytomegalovirus Specific T Cells after Pediatric Allogeneic Stem Cell Transplantation: Results from a Pilot Study Using a Multi-Allele CMV Tetramer Group - Koehl, U.; Dirkwinkel, E.; Koenig, M.; Erben, S.; Soerensen, J.; Bader, P.; Doerr, H. W.; Preiser, W.; Weissinger, E.; Klingebiel, T.; Martin, H.; Lehrnbecher, T. (Klinische Pädiatrie, 2008)