Lymphocyte counts of NHL study patients following HCT and costimulated T-cell infusions given on day 14 after HCT as indicated by arrow. (A) The mean (± SEM) ALC of all study patients receiving T cells (at days 0, 30, 60, 90, and 120; n = 16, 16, 14, 13, and 11, respectively). (B) ALC of individual patients. Day 0 is designated as the day of HCT.