Warning: Altitude Sickness Shouldn't Be Taken Lightly  
   Article from Health World about the effects of altitude on exercise.
   http://www.healthy.net/asp/templates/news.asp?Id=2473

Outdoor Action Guide to High Altitude  
   Description of altitude related illnesses, their symptoms and their treatment.
   http://www.princeton.edu/~oa/safety/altitude.html

Apex Altitude  
   A charity that exists to perform high altitude medical research and educate the public about the topic
   http://www.apex-altitude.com/

Healthy Me  
   Basic information, including a bibliography.
   http://www.ahealthyme.com/topic/topic13676

Altitude Illness  
   Summary of prevention and treatment methods.
   http://ciwec-clinic.com/altitude/

British Mountaineering Council - Mountain Medicine Centre  
   Information on altitude related illnesses with a focus on climbing at altitude.
   http://www.thebmc.co.uk/world/mm/mm0.htm

Merck Manual of Diagnosis and Therapy  
   Chapter from the Merck Manual on altitude sickness covering causes, treatment, and prevention.
   http://www.merck.com/pubs/mmanual/section20/chapter281/281a.htm

WebMD  
   Questions and answers about travel to destinations at altitude. Submit a question or read previously submitted questions and answers.
   http://my.webmd.com/question_and_answer/article/1676.50847

Supplemental Oxygen for the General Aviation Pilot  
   Article on determining the need for supplemental oxygen at density altitude.
   http://www.dr-amy.com/rich/oxygen/

Special Safety Considerations for High Altitude Mountaineering  
   Article on the effects of altitude with an emphasis on climbing at altitude.
   http://www.cmc.org/cmc/safetyha.html

Altitude Sickness and Atmospheric Pressure  
   Basic information plus a utility to calculate the atmospheric pressure at any altitude.
   http://www.personal.usyd.edu.au/~gerhard/pressure.html

High-Altitude Pulmonary Edema: Current Concepts  
   Abstract of a 1996 article summarizing the current state of HAPE research and treatment.
   http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=Display&DB=PubMed

High Altitude Pathology Institute  
   High altitude travel advice. Information on chronic mountain sickness, high altitude pulmonary edema, the use of hyperoxic/hypoxic adaptation chambers, and triple hypoxia syndrome.
   http://www.geocities.com/CapeCanaveral/6280/

Hypoxia  
   Information about the International Hypoxia Symposium including abstracts.
   http://www.hypoxia.net/

Medex and Medical Expeditions  
   Information about and from this research charity dedicated to investigating the mechanisms of altitude related illness. Newsletter archive and planned expedition information.
   http://www.medex.org.uk/

High-Altitude Medical Guide  
   Information on the prevention, recognition, and treatment of altitude illness, as well as other health issues affecting travelers to destinations at altitude.
   http://www.high-altitude-medicine.com/

International Society for Mountain Medicine  
   Altitude tutorial. Newsletter archive. About the World Congress on Mountain Medicine and High Altitude Physiology.
   http://www.ismmed.org

Mechanism for Life-Threatening High-Altitude Sickness Uncovered  
   Article from the American Heart Association on a study of the mechanism that causes HAPE.
   http://www.newswise.com/articles/2001/4/ALTITUDE.HRT.html

Into the Heavens  
   Slide presentation on altitude and its physiological effects from Samford University's Physiology of Exercise course.
   http://www.samford.edu/schools/education/essm/PHED473/altitudeandillness/

Cerebral Syndromes  
   Article from Emergency Medicine covering cerebral syndromes in altitude sickness from AMS to HACE.
   http://www.emedicine.com/emerg/topic22.htm

Pulmonary Syndromes  
   Article from Emergency Medicine covering HAPE.
   http://www.emedicine.com/EMERG/topic795.htm

Bibliography of High-Altitude Medicine and Physiology  
   Search by author, title, or citation.
   http://annie.cv.nrao.edu/habibqbe.htm

High Altitude Medicine and Biology  
   About the magazine published by Mary Ann Liebert, Inc.
   http://www.liebertpub.com/HAM/

HypoMed Global Services  
   Information on Hypoytherapy/Hypoxytraining. About the annual international "Hypoxia in Medicine" conference.
   http://www.hypomed.ch/

Outdoor Places  
   Basic description of common illnesses encountered at various altitudes with prevention tips.
   http://www.outdoorplaces.com/Features/Mountain/altitude/page1.htm

Birmingham Medical Research Expeditionary Society  
   Site of a group of medical scientists studying the effects of altitude and the causes and management of acute mountain sickness.
   http://www.bmres.org.uk/

American Academy of Family Physicians  
   Overview article with an informational handout for patients.
   http://www.aafp.org/afp/980415ap/harris.html

Urinary Leukotriene E4 Levels in HAPE  
   Abstract of a study of the association between urinary excretion of leukotriene-E4 (LTE4) and high altitude pulmonary edema (HAPE) in order to determine whether HAPE involves inflammatory mechanisms.
   http://infoventures.com/osh/abs/aero0004.html

CDC Travelers' Health Information on Altitude Illness  
   CDC's advisory for people planning travel to destinations at altitude.
   http://www.cdc.gov/travel/diseases/altitude.htm

Pardoes Altitude & Acclimatization Page  
   Information on proper acclimatization and hydration to reduce the incidence of altitude illness. Discussion of altitude's effect on diet, menstruation, and medications. Bibliography and links.
   http://www.pardoes.com/climbing/acclima.htm

Non-Physician Altitude Tutorial  
   Tutorial from the International Society for Mountain Medicine covering acclimatization, AMS, HACE, and HAPE. Includes treatment and prevention information.
   http://www.ismmed.org/np_altitude_tutorial.htm

High Altitude Medicine  
   About the book by Herb Hultgren, M.D., including ordering information.
   http://www.highaltitudemedicine.com/

High Altitude Pulmonary Edema (HAPE)  
   Article on a personal experience with HAPE.
   http://comspark.com/esarc/reference/pulmedema.htm

Family Practice Notebook: High Altitude Sickness  
   Outline of symptoms, prevention, and diagnosis for all altitude related illnesses.
   http://www.fpnotebook.com/ER14.htm

eMedicine Health - Mountain Sickness  
   Consumer health resource center providing information on the causes, symptoms, and treatment.
   http://www.emedicinehealth.com/articles/6323-1.asp

High Altitude Pulmonary Edema (and me)  
   Personal account of an experience with HAPE.
   http://www.weasel.com/hape.html