1. Potential interaction between warfarin and boldo-fenugreek;Lambert;Pharmacotherapy,2001
2. Antiplatelet effects of some aporphine and phenanthrene alkaloids in rabbits and man;Teng;J Pharm Pharmacol,1997
3. Reduced effect of warfarin caused by ubidecarenone;Spigset;Lancet,1994
4. Interaction between warfarin and coenzyme Q10;Landbo;Ugeskr Laeger,1998
5. Effect of coenzyme Q10 and Ginkgo biloba on warfarin dosage in patients on long-term warfarin treatment. A randomized, double-blind, placebo-controlled cross-over trial;Engelsen;Ugeskr Laeger,2003