http://www.niddk.nih.gov/DiabetesDocs.html
Diabetes mellitus and conditions caused by diabetes, such as neuropathy, information for patients.

http://www.io.org/~thyroid/English/Guides.html
There are multiple links to other websites concerning thyroid conditions. Pictures are available on some of the sites.

http://www.cs.sfu.ca/css/update/vol8/8.1-muscles.html
This site explains in lay terms the effect of insulin-like growth factor (IGF) on the growth of muscle cells and relates the phenomena to aging. Additionally, a clear drawing explains the roles of receptors and of carrier molecules in this process.

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