Fig. 6. In vivo recruitment in CXCR2^–/– mice in response to fMLP. (a) Velocity of rolling cells. (b) Number of rolling cells passing through the blood vessel per minute. (c) Number of neutrophils adhering to the endothelium per 100 µm of blood vessel. (d) Number of neutrophils emigrating from a single blood vessel, within one field of view. n=3 for all data; no significant difference, ANOVA with Bonferroni's correction.