We thank Thomas Kipps and Laura Rassenti (UCSD Moores Cancer Center) for their assistance in obtaining samples from patients with CLL and the BMNK cells and Pinyi Du and the UCSD Center for AIDS Research (CFAR) Genomics Core for the assistance in conducting TaqMan GPCR array studies. The gene discussed is FZD4; the disease is B-cell chronic lymphocytic leukemia.