Organization which attempts to identify those affected by alpha-1-antitrypsin deficiency and to improve their quality of their lives through support, education, advocacy and research.

A nonprofit, member organization serving the educational and scientific needs of its physicians, researchers, and scientists, who are striving to prevent and cure diseases of the liver and biliary tract.

The site includes information on certification, examinations, policies, and publications of the ABIM subspecialties(eg. internal medicine, gastroenterology).

Organization involved in study and treatment of disorders of the gastrointestinal tract. The College promotes medical education and attempts to meet the needs of clinical gastroenterology practitioners.

society of physicians and scientists that serves as an advocate for its members and their patients; supports members' practices and scientific needs; and promotes the research and application of new knowledge leading to digestive disease prevention, treatment, and cures.

Provides information about liver in health and disease, research funding, and patient related information.

fostering clinical and basic research in pancreatic disease. Includes news, member information, meeting notes, and links.

APFED is a non-profit organization cated to the patients and their families oping with eosinophilic gastrointestinal. APFED strives to expand education, create awareness, and support.

Represents gastroenterologists, surgeons, and other digestive health specialists who are committed to diagnosis and treatment of GI disease through the appropriate use of endoscopic techniques.

National medical society of licensed physicians offering specialized programs in the medical treatment of obesity (bariatrics), weight loss and dieting.