The Whiteley Clinic 
Information about economy class syndrome and deep vein thrombosis (DVT) including precautions for air travel.
http://www.economy-class.co.ukThe Sol Sherry Thrombosis Research Center 
Features center information, staff biographies, list of seminars offered, and links to resources.
http://www.temple.edu/sstrc/
Thrombosis Interest Group of Canada 
Detailed information on blood clots. Explanations and treatment options.
http://www.tigc.org
Airhealth.org 
Provides information about Economy Class Syndrome and offers DVT prevention tips for pilots and passengers, treatment information, research, and a review of how well various airlines inform their passengers of the risks of blood clots from air travel.
http://www.airhealth.org/
Economy Class Syndrome 
Features description of risks and symptoms, prevention tips, information about compression hosiery, and links to related articles.
http://www.economyclasssyndrome.net/
Coalition Formed to Raise Awareness of DVT 
Article describing the goals of the Council for Leadership on Thrombosis Awareness and Management. [Requires free registration]
http://www.medscape.com/viewarticle/426817
Medical Experts Unite to Raise Awareness of Risk, Threat of Blood Clots 
Council for Leadership on Thrombosis Awareness and Management formed to advance prevention and treatment of thrombosis. Includes disease description and council's education plans.
http://www.eurekalert.org/pub_releases/2002-02/m-meu021302.php
Thrombosis Research Institute 
A multidisciplinary organization concerned with the interrelated problems of thrombosis and atherosclerosis. Provides articles for professionals and consumers.
http://www.tri-london.ac.uk/
Lower Extremity Venous Anatomy and the Use of Ultrasound for Detecting and Diagnosing Thrombus 
Article describing how ultrasound is used to diagnose DVTs in the lower extremities.
http://test.cvtcollege.org/Ac_Programs/dms_vascular/studentErika.html
Thrombosis Crisis in Hospital Medicine 
Free continuing medical education symposia from American Health Consultants on acute thrombosis management in emergency medicine.
http://www.ahcpub.com/ahc_root_html/products/conferences/thrombosishm_aventis2003.html
Severe Pulmonary Embolism Associated with Air Travel 
Article from the New England Journal of Medicine. [Free registration required to read full article]
http://content.nejm.org/cgi/content/abstract/345/11/779
The Thrombophilias: Well-Defined Risk Factors with Uncertain Therapeutic Implication 
Annals of Internal Medicine article.
http://www.annals.org/issues/v135n5/full/200109040-00013.html
Pulmonary Embolism 
Article by Craig Feied, MD, detailing the background, diagnosis, and treatment of pulmonary embolism.
http://www.emedicine.com/EMERG/topic490.htm
Tim Hentzel's Deep Vein Thrombosis 
Essay and weblog describing one man's experience with DVT.
http://www.hentzel.com/clot.htm
Four Corners Online: Economy Class Syndrome 
Archive of a 2001 discussion prompted by a young British woman's death following a vacation in Australia.
http://www2b.abc.net.au/4corners/sforum60/
Travellers Thrombosis 
From Dr. P. C. Malone, offering research papers, articles, and DVT information.
http://www.travellersthrombosis.co.uk/
Yahoo! Groups: Thrombosis 
Discussion mailing list for sufferers of deep vein thromboses, pulmonary emboli, and other vascular disorders.
http://health.groups.yahoo.com/group/thrombosis/
New England Journal of Medicine: Thromboembolism 
Collection of articles covering topics such as embolic complications and thrombolytic therapies. Includes research articles, case reports, reviews, and editorial commentary. [Paid registration required to view some recent content]
http://content.nejm.org/cgi/collection/anticoagulantsthromboembolism
Investigators Against ThromboEmbolism (INATE) 
Information about the prevention and treatment of venous thromboembolism. Includes information for patients and a restricted area for registered health care providers only.
http://www.inate.org/
The Australasian Society of Thrombosis and Haemostasis 
Represents clinicians and scientists committed to promoting and fostering knowledge relating to haemostasis. Includes mission, meeting minutes, newsletters, membership information, members-only discussion board, and related links.
http://www.asth.org.au/
Diagnosis of Pulmonary Embolism 
Canadian Medical Association journal article describing how these blood clots are diagnosed.
http://www.cmaj.ca/cgi/content/full/168/2/183
DVT.net 
From Sanofi-Aventis Pharmaceuticals. Information on the causes, symptoms, and treatments of deep vein thrombosis, pulmonary embolism, and stroke. Includes free membership area with health tips and tools.
http://www.dvt.net/
eMedicine Health: Blood Clot in the Legs 
Provides information on causes, symptoms, and treatment of deep venous thrombosis.
http://www.emedicinehealth.com/articles/10885-1.asp
eMedicine Health: Phlebitis 
Provides information on the causes, symptoms, and treatment of phlebitis.
http://www.emedicinehealth.com/articles/11161-1.asp
eMedicine Health: Pulmonary Embolism 
Provides information on the causes, symptoms, and treatment of pulmonary embolism.
http://www.emedicinehealth.com/articles/17711-1.asp
DVT.org 
Features their Best Practices: Preventing Deep Vein Thrombosis and Pulmonary Embolism manual in HTML and PDF formats plus information about the treatment of thrombosis.
http://www.outcomes-umassmed.org/dvt/
The National Alliance for Thrombosis and Thrombophilia (NATT) 
Includes organization background, events, and links to further information.
http://www.nattinfo.org/
CBC News: The Perils of Travellers' Thrombosis 
Background on the cause, symptoms, and treatment of Economy Class Syndrome with links to related news stories.
http://www.cbc.ca/news/background/thrombosis/
Coalition to Prevent Deep-Vein Thrombosis 
A coalition of health organizations committed to educating the public and health care community about DVT. Includes disease signs and symptoms, patient stories, a risk assessment tool, press materials, and resources. By Sanofi-aventis U.S.
https://www.preventdvt.org/