A clotting scheme for 1964.
D001777:Blood Coagulation / Q000502:physiology*; D001779:Blood Coagulation Factors; D004798:Enzymes / Q000097:blood; D006801:Humans; D014357:Trypsin / Q000494:pharmacology
D001779:Blood Coagulation Factors; D004798:Enzymes; D014357:Trypsin