Increase in blood counts after immunosuppression among responders in the refractory and relapsed studies. In the refractory study, the increment in blood counts was similar in the rabbit ATG and alemtuzumab arms. In the relapsed study, the increment in blood counts after alemtuzumab was similar to the same regimen in the refractory study. Only 1 responder in the rabbit ATG arm is shown for 4- and 5-year follow-up. Blood counts after relapse are not shown because alternative therapies were sought. The mean ± SEM is shown.