1. Plum CM, Fog T. Studies in multiple sclerosis. Acta Neurol Scand 1959;34(Suppl 128):13-18.
2. Multiple sclerosis and macrocytosis;Crellin, R.F.; Bottiglier, T.; Reynolds, E.H.;Lancet,1989
3. Vitamin B12 deficiency, demyelination and multiple sclerosis;Reynolds, E.H.; Linnell, J.C.;Lancet,1987
4. Multiple sclerosis and vitamin B12 metabolism-a new clue;Reynolds, E.H.; Linnell, J.C.;J Neurol Neurosurg Psychiatry,1988
5. The megaloblastic anaemias;Chanarin, I.,1979