title: Difficulty of establishing preoperative coagulation status.
authors.forename: J C
authors.initials: JC
authors.lastname: Watts
authors.forename: D
authors.initials: D
authors.lastname: Joseph
mesh_terms: D001780:Blood Coagulation Tests / Q000379:methods; D006801:Humans; D008297:Male; D011300:Preoperative Care / Q000379:methods*; D014227:Triazines; D055815:Young Adult; D014842:von Willebrand Diseases / Q000175:diagnosis*
chemical_list: D014227:Triazines; C053507:4-azido-7-phenylpyrazolo-(1,5a)-1,3,5-triazine