Ford, Sarah K Prospective study of supplemental vitamin K therapy in patients on oral anticoagulants with unstable international normalized ratios. [electronic resource] - Journal of thrombosis and thrombolysis Aug 2007 - 23-7 p. digital Publication Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0929-5305 Standard No.: 10.1007/s11239-007-0014-z doi Subjects--Topical Terms: Anticoagulants--administration & dosageCross-Over StudiesDietary SupplementsHumansInternational Normalized RatioProspective StudiesReproducibility of ResultsVitamin K--administration & dosage