E-books about sleep apnea

library.nu is a good site with many educational books (all topics) and there seem to be quite a few on sleep apnea. I think you have to register (free) to browse and then I am not sure if the entire library shows if you don't donate (I donated a small amount so that could be why I see them all). Many of the books are in PDF format which doesn't read well on my Kindle but they would be good on an ipad or other devices that use that format.

I hope this doesn't seem like a solicitation. I have seen other links here to information and products so I am assuming it is ok to post this. If it is not I will remove it. I just know that e-book fiends (as I am) like to find new resources.

Thanks Elle!

Interesting link, thanks.