Thanks for the link. An interesting read. I think their point about the prolonged time to clear contrast which is ignored by Traboulsee is significant and I was pleased they made the same point I did about aggregating their results. But I don't think it will do much to change the hype which was peddled by the Canadian MS Society in 2013. But I think we can confidently look forward to more reflections like these. There is a lot worthy of criticism in Traboulsee's report.