1. Risk of multiple sclerosis related to age at immigration to Israel;Alter, M.; Leibowitz, U.; Speer, J.;Archives of Neurology,1966
2. When is multiple sclerosis acquired?;Alter, M.; Okihiro, M.;Neurology (Minneap.),1971
3. HL-A antigen segregation analysis in multiple sclerosis;Bertrams, J.; Kuwert, E.;Lancet,1974
4. The Increasing Incidence of Multiple Sclerosis in South Africa since 1960. Presented at 6th Canadian Congress of;Bird, A.V.;Neurological Sciences, St John's Northfield,1971
5. Multiple sclerosis in South Africa;Bird, A.V.; Kerrich, J.E.;South African Medical Journal,1969