Natalie,
Honest answer is we don't know what the truth is because they won't tell us.
We can search for info and let people know what we find out, but until they open the box and tell us the truth, we cannot confirm anything. That's why I don't say anything's confirmed. I quote sources and boards and spouses and patients and articles.
It sure will be nice when I can say...This is the official statement from 'blank'