van den Besselaar, A M Different sensitivities of various thromboplastins to two blood collection systems for monitoring oral anticoagulant therapy. [electronic resource] - Thrombosis and haemostasis Jul 1999 - 153-4 p. digital Publication Type: Comment; Letter ISSN: 0340-6245 Subjects--Topical Terms: Administration, OralAnticoagulants--administration & dosageBlood Specimen Collection--standardsDrug Monitoring--methodsHumansThromboplastin--analysis