Sreeram V Ramagopalan , William Valdar , David A Dyment , Gabriele C DeLuca , Sarah-Michelle Orton , Irene M Yee , Maria Criscuoli , George C Ebers , A Dessa Sadovnick and for the Canadian Collaborative Study Group
BMC Neurology 2008, 8:30doi:10.1186/1471-2377-8-30