Learn about the clinical details of a number of skin diseases

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world's largest medical library. It collects materials in all major areas of the health sciences and to a lesser degree in such areas as chemistry, physics, botany and zoology. The collections stand at 5 million items--books, journals, technical reports, manuscripts, microfilms, photographs and images. Housed within the Library is one of the world's finest medical history collections of old (pre-1914) and rare medical texts, manuscripts, and incunabula.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Web site of the American Academy of Family Physicians, a medical specialty society that represents more than 93,700 family physicians and medical students.

Developed under the guidance of leading dermatologists, you will find facts, insight, and tips to help you make informed decisions about treating common skin diseases and whether or not a cosmetic procedure is right for you.

Homepage of Merck.com, Merck's corporate Web site

Extensive knowledge base of medical information on symptoms, diagnosis, and misdiagnosis of more than 20,000 medical conditions. Research causes of your symptoms or research treatments for diseases.