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Genetics Home Reference (GHR) provides free access to consumer-friendly information on medical genetics to patients and their family members, health care professionals, and the public. The site offers summaries for a broad range of inherited conditions or disorders caused by gene alterations. Each condition summary includes the causes, available genetic testing, and links to summaries on related genes. Descriptions of genes include gene names and their synonyms, normal function, chromosome location, and an explanation of any disorder-causing mutations. Additionally, GHR provides a genetics glossary, help on understanding genetics, and links to many useful consumer, support, and research organizations. GHR is a service of the U.S. National Library of Medicine at the National Institutes of Health.

The eMedicine point-of-care clinical reference features up-to-date, searchable, peer-reviewed medical articles organized in specialty-focused textbooks, and is continuously updated with practice-changing evidence culled daily from the medical literature.

Ehlers Danlos Syndrome (EDS) is a heterogeneous group of heritable connective tissue disorders, characterized by articular (joint) hypermobility, skin extensibility and tissue fragility. Ehlers-Danlos Syndrome (EDS) is a group of inherited disorders that affect connective tissue. The body's connective tissues binds and supports the body's muscles, ligaments, organs and skin. EDS is characterized by articular (joint) There are six major types of EDS. The different types of EDS are classified according to their manifestations of signs and symptoms. Each type of EDS is a distinct disorder that "runs true" in a family. This means that an individual with Vascular Type EDS will not have a child with Classical Type EDS. Individuals with EDS have a defect in their connective tissue, the tissue which provides support to many body parts such as the skin, muscles and ligaments. The fragile skin and unstable joints found in EDS are the result of faulty collagen. Collagen is a protein which acts as a "glue" in the body adding strength and elasticity to connective tissue.

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.

The Ehlers-Danlos National Foundation provides information about Ehlers-Danlos Syndrome and support to people with EDS and related disorders.