Induction of systemic CTL responses in melanoma patients by dendritic cell vaccination: cessation of CTL responses is associated with disease progression. - Andersen,MH.; Keikavoussi,P.; Brocker,EB.; Schuler-Thurner,B.; Jonassen,M.; Sondergaard,I.; Straten,PT.; Becker,JC.; Kampgen,E. (Int J Cancer, 2001)