Diagnosaurus - Differential Diagnosis tool for PDA
A free compendium of over 1000 differential diagnoses of symptoms and diseases for Palm- and PocketPC-compatible PDAs. Adapted from Current Medical Diagnosis & Treatment.
Edema - MEDLINEplus
Reliable patient information from MedLine Plus about edema, including topics such as prevention with low-salt diets and foot swelling while traveling.
Chronic Fatigue Syndrome - MEDLINEplus
Reliable patient information from MedLine Plus about chronic fatigue syndrome, including diagnostic criteria, support groups, and the overlap between chronic fatigue syndrome and fibromyalgia.
Chronic Fatigue Syndrome - American Academy of Family Physicians
An excellent patient resource on chronic fatigue syndrome, addressing questions such as 'How do I know if I have chronic fatigue syndrome?' and 'How is chronic fatigue syndrome treated?' Version in Spanish also available.
National Guideline Clearinghouse - Headaches
Several headache-related guidelines from the National Guideline Clearinghouse on migraine headaches and when to image non-traumatic headaches.