Just seen this on another online forum:
Hi I'm sure most of you with DS kids get the DSA Journal. There is an article in the spring edition which I have just received querying the link between grandmaternal age and DS. Professor Howard Cuckle and his colleagues at Leeds University are requesting that we complete an online questinnaire to help with this study. I have just done mine and it took 2 mins. All you need to do is go to:
www.ychi.leeds.ac.uk/dsagestudy