Undersea and Hyperbaric Medical Society
European Underwater and Baromedical Society
South Pacific Underwater Medicine Society
Wilderness Medical Society
Aerospace Medical Association
International Society of Travel Medicine
ESAM (European Society of Aerospace Medicine)
Shield Risk Consulting
European Diving Technology Committee
Oxynet
Rubicon Foundation
Aeromedical guidelines
Disability Travel and Recreation Resources
Fit for travel
Medical College of Wisconsin International Travelers Clinic
British Airways – Health Services
World Clock – Time Zones
Gouda Rejseforsikring
International health insurance – Danmark A/S
TRYG rejseforsikring
GoSafe Rejseforsikring
Europæiske Rejseforsikring
WHO
CDC – Center for Disease Control and Prevention
Statens Serum Institut
Folkehelseinstituttet Norge
Smittskyddsinsitutuet Sverige
Udenrigsministeriets Rejsevejledninger
U.S. Department of State International Travel
Foreign & Commonwealth Office – U.K.
CIA World Factbook
