IL4Tg mice were transfused with PBS, fresh hTg platelets, control Fab-stored hTg platelets, or 5G6 Fab-stored hTg platelets. One hour after transfusion, 1 mm segment of the mouse tail was cut off. Blood drops were absorbed every 20s using a filter paper until bleeding ceased. Each symbol represents the bleeding time of one mouse. **, P < 0.01; *, P < 0.05; n.s., not significant (Two-tailed Fisher’s test)