The Pituitary Foundation
Addison's Disease Self Help Group
Androgen Insensitivity Syndrome Support Group (AISSG)
American Thyroid association, Thyroid Patient Information
British Thyroid Foundation
Butterfly Thyroid Cancer Trust
Congenital Adrenal Hyperplasia Support Group
Child Growth Foundation
Gender identity issues
Klinefelter Organisation
Klinefelter's Syndrome Association UK
National Osteoporosis Society
Neuroendocrinology
The Prader-Willi Syndrome Association (UK)
Turner Syndrome Support Society
Society for Endocrinology (UK)
The official public information website of the Society for Endocrinology