title: Who needs two different citrate concentrations in sample tubes used for coagulation tests?
authors.forename: Juha
authors.initials: J
authors.lastname: Horsti
mesh_terms: D001780:Blood Coagulation Tests / Q000379:methods* / Q000592:standards; D002138:Calibration; D019343:Citric Acid; D006801:Humans; D007391:International Cooperation; D011517:Prothrombin Time; D011786:Quality Control; D012016:Reference Values
chemical_list: D019343:Citric Acid