Web Based Medical Resources

I found two:

1. http://www.thelancet.com/home

I was able to open and read one Lancet article by registering.

2. http://www.uptodate.com/patients/index.html

For example, in this article by Richard Lewis, MD you will see 8 ‘diseases’ in common with CIDP. Further, one category includes another 10 systemic (system wide) disorders. :

http://www.uptodate.com/contents/chronic-inflammatory-demyelinating-polyneuropathy-etiology-clinical-features-and-diagnosis?source=search_result&search=cidp&selectedTitle=1%7E10

Note that the Terms of Use (TOU) for the uptodate website prohibit re-posting their material. However, linking to the website is allowed. Importantly, they encourage patients to print their articles to take to your doctor.