Thank you Labrat,
It will take me a little time to read the text from the first link, but it looks very specif and I look forward to learning more.
I don't know how many ways I and everyone can thank you for the second link. I did not even know a site like that existed and is definitely a usefull tool for anyone wanting to educate themselves more on any medical area. You should be commended for posting such a usefull link, here especially.