[Multiple sclerosis in Cuba].
Mallada-Frechín
J
J
D044383:Black People; D003462:Cuba / Q000453:epidemiology / Q000208:ethnology; D005431:Florida / Q000453:epidemiology; D006801:Humans; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000208:ethnology; D044465:White People; D001741:Black or African American