Fraser SR, Booth NA, Mutch NJ. The antifibrinolytic function of factor XIII is exclusively expressed through α₂-antiplasmin cross-linking. Blood. 2011;117(23):6371-6374.

On pages 6372 and 6373 in the 9 June 2011 issue, there are errors in the third and fourth sentences in the third paragraph of “Results and discussion” and in the Figure 2 legend. The incorrect sentences read, “In contrast, when a neutralizing antibody to α₂AP was also added, no change in lysis was observed (Figure 2A open circles). We verified that the addition of FXIII had no effect on lysis of thrombi formed from α₂AP depleted plasma (Figure 2A closed triangles).” The sentences should have read, “In contrast, when a neutralizing antibody to α₂AP was also added, no change in lysis was observed (Figure 2A closed triangles). We verified that the addition of FXIII had no effect on lysis of thrombi formed from α₂AP depleted plasma (Figure 2A open circles).” In the Figure 2 legend, the symbol for α₂AP depleted plasma should be an open circle and the symbol for FXIII depleted plasma with neutralizing antibody to α₂AP should be a closed triangle. The first sentence of the Figure 2 legend should have read, “(A) Plasma thrombi were prepared from FXIII depleted plasma in the absence (●) and presence (▴) of a neutralizing antibody to α₂AP or α₂AP depleted plasma (○).”