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Figure 5 (A and B) Adenosine diphosphate (ADP)-induced platelet and whole blood aggregations, respectively in wild-type (P^+/+) and P-selectin-deficient (P^–/–) mice. (C and D) Size distributions of whole blood aggregates in P^+/+ and P^–/– mice, respectively. (E and F) Representative two-color analyses of large platelet-leukocyte aggregate in P^+/+ and P^–/– mice, respectively.