azim58 - original plans for figure 5 7-3-13 could be figure 5 YSp1 and YSp2 with YSt1 (3, 10, 30, 100) YSp1 and YSp2 with YSt2 (3, 10, 30, 100) This figure helps address the question: How do splenocytes from individuals of the same age compare in regards to their reactivity for young stem cells?