title: Effect of urea on the endotoxin activated clotting system of Limulus polyphemus.
mesh_terms: D000818:Animals; D001777:Blood Coagulation / Q000187:drug effects*; D001779:Blood Coagulation Factors / Q000378:metabolism; D001798:Blood Proteins / Q000502:physiology; D003864:Depression, Chemical; D004305:Dose-Response Relationship, Drug; D004731:Endotoxins / Q000037:antagonists & inhibitors*; D006023:Glycoproteins / Q000378:metabolism; D006737:Horseshoe Crabs / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D008033:Limulus Test; D014508:Urea / Q000494:pharmacology*
chemical_list: D001779:Blood Coagulation Factors; D001798:Blood Proteins; D004731:Endotoxins; D006023:Glycoproteins; C013445:coagulogen; D014508:Urea