RT Journal Article SR Electronic T1 Multiple sclerosis in Poland and in northern England JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 779 OP 779 DO 10.1212/WNL.14.9.779 VO 14 IS 9 A1 Henry Miller A1 Kurt Schapira A1 Janina Rafalowska A1 Krystyna Warecka YR 1964 UL http://n.neurology.org/content/14/9/779.abstract AB