Individual animal comparison of lymphocyte mobilization with G-CSF alone versus AMD3100 alone. Three animals were mobilized with G-CSF and then, 2 months later, were mobilized with AMD3100. The fold change at 2 hours for each population was compared with baseline (precytokine treatment) and is shown for each of the animals and for the 2 mobilization regimens. Squares represent animal 1; circles, animal 2; and triangles, animal 3. Values obtained were log-transformed and compared using a paired t test. ns indicates not significant (P > .1). ^P < .1. *P < .05. **P < .01. ***P < .001.