... Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA and 4Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine; ... University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA, 2Abramson Cancer Center, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA, 3Division of Hematology-Oncology, ... BM, Yi KH, Rosenblatt JD:Increased rejection of primary tumors in mice lacking Bcells: inhibition of anti -tumor CTL and TH1 cytokineresponses by B cells. Int J Cancer 2005, 117:574-586.18....