http://www.projectsinknowledge.com/c...3.05&pretest=y
A comparative study, interesting and informative when it comes to lesions and the differentiation between the two diseases.
(PS: I haven't had a chance to do any investigating on anything that has been posted about the reported new PML cases. I had too much RL to deal with today and I am going to BED!

I'll try to find more this weekend if I have time!)