"plasmin-plasmin inhibitor complex"[Supplementary Concept] OR ppic protein complex*[tiab] OR pap complex*[tiab] OR plasmin antiplasmin complex*[tiab] OR plasmin inhibitor plasmin*[tiab] OR plasmin alpha2 plasmin inhibitor*[tiab] OR plasmin alpha 2 antiplasmin*[tiab] OR alpha pip complex*[tiab]