ADAMTS13 activity values.

ADAMTS13 activity in the plasma of patients with TTP (A) or HUS (B) according to whether they had recurrent (Rec) or familial (Fam) forms of the diseases and to phase of event. ADAMTS13 activity values were expressed as percentage activity of normal plasma pool. Horizontal gray bar indicates the range of values for plasma ADAMTS13 activity values in healthy subjects. Rem, remission.