00475nas a2200169   4500000000100000000000100001008004100002100001700043700001400060700001800074700001700092700003100109245013400140300001000274490000700284022001400291       2014                            d1 aI. Mackenzie1 aS. Morant1 aG. Bloomfield1 aT. MacDonald1 aJ. O\textquoterightRiordan00aIncidence and prevalence of multiple sclerosis in the UK 1990-2010: a descriptive study in the General Practice Research Database  a76-840 v85  a0022-3050