1. A preparation from spoiled sweet clover. 3,3’Methylene-bis-(4-hydroxy-coumarin) which prolongs coagulation and prothrombin time of the blood: preliminary report of experiments and clinical studies;Butt;Mayo Clin Proc,1941
2. Effect of the synthetic haemorrhagic agent 4-hydroxy-coumarin in prolonging the coagulation and prothrombin time;Townsend;Can Med Assoc J,1942
3. The oral anticoagulant saga: past, present, and future;Duxbury;Clin Appl Thromb Hemost,2001
4. Antithrombotic therapy to prevent stroke in patients with atrial fibrillation: a meta-analysis;Hart;Ann Intern Med,1999
5. Warfarin pharmacogenomics;Johnson;Trends Cardiovasc Med,2015