It's sad because the only other breeds that I've ever heard of which suffer from SM are Griffons and from this thread, Affenpinschers. I've never seen any stories, statistics or anything like that on the other breeds. On the Papillon Club website, they have an article on SM but that's it. No stories from people who have had dogs suffer from it, stats, or anything. I wonder how many pet owners out there have a dog suffering from SM but don't even know that it's SM?