BBC News Health - Human Gland evolved from Gills - http://news.bbc.co.uk/2/hi/health/4067039.stm
The human parathyroid gland, which regulates calcium levels, probably evolved from fish gills, say researchers. |
Endocrine Surgeon: Parathyroids Introduction - http://www.endocrinesurgeon.co.uk/parathyroids/Parathyroids-Introduction.html
Includes a history, symptoms, diagnosis, and related topics done in a easy to read format. |
Parathyroid.com - http://www.parathyroid.com/
Discusses diseases, symptoms, tests, and treatments, including mini-surgery. |