I've posted before on the long term side effects of coumadin.  This study is a specific example.  After a chronic blood clot was identified in my leg my pcp prescribed coumadin.  After being on coumadin for about 18 months, it became clear to me that my pcp intended the coumadin to be a permanent therapy.

Though my pcp strongly disagreed, I took myself off coumadin and began supplementing with broad spectrum enzymes, nattokinase, vit e and fish oil- all of which have blood thinning effects in addition to a host of beneficial properties.  David

Newswise — AstraZeneca and the American Cancer Society today announced a strategic collaboration to significantly extend the reach of the Society’s innovative Patient Navigator Program – an initiative to assist individual cancer patients in negotiating the health care system. With major support from AstraZeneca, the American Cancer Society will accelerate development of at least 50 new Patient Navigator Program sites over the next five years in communities throughout the United States. The first three sites to launch are Seattle Cancer Care Alliance in Seattle, Washington; Helen F.