Years ago I read a blog post by a Jewish doctor who was trying to do hypothermia research without relying on Nazi data. His ultimate conclusion was that it was not reasonable to discard this data, because treatment would be very inadequate without it. It would unnecessarily hurt people today to give lesser care, and it would not be a positive testament to the memory of those victims to throw it all away.

I haven't been able to find that blog post again, but I often think about it and would love to bookmark it.

It's in a similar vein of ethical question to embryonic stem cell treatments, but certainly with very different aspects between them.