title: Preanalytical variables in coagulation testing.
authors.forename: Chelsea A
authors.initials: CA
authors.lastname: Sheppard
authors.forename: Cindy
authors.initials: C
authors.lastname: Channell
authors.forename: James C
authors.initials: JC
authors.lastname: Ritchie
authors.forename: Alexander
authors.initials: A
authors.lastname: Duncan
mesh_terms: D001778:Blood Coagulation Disorders / Q000175:diagnosis*; D001780:Blood Coagulation Tests; D003951:Diagnostic Errors; D006801:Humans; D015203:Reproducibility of Results