Dear friends, If this survey would be organized by a professional scientist it could bring, some usefully information. But beside this problem, there are several other items that could link to the same questionnaire. I'm pretty sure a lot of us are interested for example in the cause of our PD. Others, especially the younger ones, like to know which attitude of living we may expect after 4,5, etc years after diagnoses. It was just a thought, but maybe it's worthwhile to think it over? Piet Van der Poorten (Belgium) [log in to unmask]