title: MULTIPLE SCLEROSIS IN POLAND AND IN NORTHERN ENGLAND.
mesh_terms: D000293:Adolescent; D002648:Child; D004739:England; D004813:Epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008875:Middle Aged; D009103:Multiple Sclerosis; D011044:Poland; D012723:Sex; D013223:Statistics as Topic
keywords: ADOLESCENCE; CHILD; ENGLAND; EPIDEMIOLOGY; INFANT; INFANT, NEWBORN; MIDDLE AGE; MULTIPLE SCLEROSIS; POLAND; SEX; STATISTICS