My daughter is an A-level student researching whether MS can be prevented. She has a 1-minute anonymous survey to see if those diagnosed with MS have the same risk indicators as those identified in her literature review. If you're an MSer, please consider taking part in this short survey about Vit. D and other factors. You can view the survey here https://www.surveymonkey.co.uk/r/NM3ZBTB Thank you for your help!