On the presence of thrombin in blood.
D000818:Animals; D001777:Blood Coagulation / Q000187:drug effects*; D002417:Cattle; D005341:Fibrinolysin / Q000037:antagonists & inhibitors; D006801:Humans; D000439:Pentanols / Q000494:pharmacology*; D013917:Thrombin / Q000502:physiology*
D000439:Pentanols; D013917:Thrombin; D005341:Fibrinolysin