Ramsey, R.B.; Scott, T.; Banik, N.L. ~ Fatty acid composition of myelin isolated from the brain of a patient with cellular deficiency of co-enzyme form of vitamin B12. Journal of Neurological Sciences. 1977; 34: 221 - 232.

Reddy, S.; Sanders, T.A. ~ Haematological studies on pre-menopausal Indian and Caucasian vegetarians compared with Caucasian omnivores. British Journal of Nutrition. 1990; 64: 331 - 338.

Register, U.D.; Grane, M.G.; Hasso-Haddad, E.; Hodgkin, G.E.; e.a. ~ Serum total homocysteïne, vitamin B12 and methylmalonic acid as a comprehensive measurement of vitamin B12 status in total vegetarians. Loma Linda University and Weimar Institute. 1992. Nog niet gepubliceerd.

Register, U.D. ~ Serum total homocysteïne, vitamin B12, and methylmalonic acid as a comprehensive measurement of vitamin B12 status in total vegetarians. Grants application to nutrition research committee. June, 1991.

Rehm, Hans-Jürgen ~ Industriëlle mikrobiologie. Springer 1980. ISBN 3-540-09642-6.

Reinboud, Weia & Wiersma, Rymke ~ Hoe komen kringen in het water. Aardige filosofie. Atalanta Utrecht. ISBN 90-73034-02-7. Postbus 24083, 3502 MB Utrecht.

Reisner, Edward H. ~ Oral treatment of pernicious anemia with vitamin B12 without intrinsic factor. New England Journal of Medicine. 1955; 253: 502 - 506.

Rendle-Short, J.; Tiernan, J.R. Hawgood, S. ~ Vegan mothers with vitamin B12 deficiency. Medical Journal of Australia. 1979; 2: 483.

Reynolds, E.H.; e.a. ~ Multiple sclerosis and vitamin B12 deficiency. In: Biomedicine and physiology of vitamin B12. Linnell, J.C.; Bhatt H.R. London, England: Children's Medical Charity. 1990; 121 - 128.

Reynolds, E.H.; e.a. ~ Multiple sclerosis and vitamin B12 metabolism: a new clue. Journal of Neurology, Neurosurgery and Psychiatry. 1988; 51: 739.

Reynolds, E.H.; Linnel, J.C. ~ Vitamin B12 deficiency, demyelination, and multiple sclerosis. Lancet. 17 october 1987; 920.

Reynolds, E.H.; Linnell, J.C. Faludy, J.E.; e.a. ~ Some patients with multiple sclerosis have a disorder of vitamin B12 metabolism. Neurology. 1989; 39 (supplement): 418.

Reynolds, E.H. ~ Multiple sclerosis and vitamin B12 metabolism. Journal of neurology, neurosurgery and psychiatry. 1992a; 55 (5): 339 - 340.

Reynolds, E.H. ~ Vitamin B12 metabolism in multiple sclerosis. Archive of Neurology. 1992b; 49 (6): 649 - 652.

Reynolds, R.R.C.P.; e.a. ~ Multiple sclerosis associated with vitamin B12 deficiency. Archive of Neurology. 1991; 48 (8): 808 - 811.

Rice, D.A.; e.a. ~ Methylmalonic acid as an indicator of vitamin B12 deficiency in grazing sheep. Veterinarian Record. 1987; 121: 472 - 473.

Robbins, William J.; Hervey Annette; Stebins, Mary ~ Studies on Euglena and vitamin B12. Science. 1950; 112: 455.

Roberts, P.D.; e.a. ~ Vitamin B12 status in pregnancy among immigrants to Britain. British Medical Journal. 1973; 3: 67 - 72.

Robertson, DM; e.a. ~ Subacute degeneration of the spinal cord not associated with vitamin B12 deficiency. Archives of Neurology. 1971; 27: 203 - 209.

Rogers, AE; Newborn, P.M. ~ Variable aspects of a lipotrope-difficiënt, high fat diet on chemical carcinogenesis in rats. Cancer Research. 1975; 35: 3427.

Rohatgi, K.; Banerjee, M.; Banerjee, S. ~ Effect of germination on vitamin B12 values of pulses (leguminous seeds). Journal of Nutrition. 1955; 56: 403 - 408.

Romano, J.; e.a. ~ Electroencephalographic data. Archives of Neurology and psychiatry. 1944; 51: 356 - 377.

Roos, D. ~ Electrophysiological findings in gastrectomized patients with low serum B12. Acta Neurologica Scandinavica. 1977b; 56: 247 - 255.

Roos, D. ~ Neurological complications in an unselected group of patients partially gastrectomized for gastric ulser. Acta Neurologica Scandinavica. 1974b; 50: 753 - 733.

Roos, D. ~ Neurological complications in patients with impaired vitamin B12 absorption following partial gastrectomy. Acta Neurologica Scandinavica. 1978; (supplement) 58: 1 - 77.

Roos, D. ~ Neurological symptoms and signs in a selected group of partially gastrectomized patients with particular reference to B12 deficiency. Acta Neurologica Scandinavica. 1974a; 50: 719 - 752.

Roos, D. ~ Various degrees of dementia in a selected group of gastrectomized patients with low serum B12. Acta Neurologica Scandinavica. 1977a; 55: 363 - 376.

Rose, Anthony H.; Harisson, J.S. ~ The Yeasts. Academic Press. London/New York. 1970.

Rose, Michael ~ Vitamin B12 deficiency in Asian immigrants (ingezonden brief). Lancet. 1976; 681.

Rosenblatt, Davis S.; Cooper, Bernard A. ~ Inherited disorders of vitamin B12 utilization. BioEssays. 1990; (7): 331 - 334.

Rostenberg, A.; e.a. ~ Nickel and cobalt dermatitis. Journal of Allergy. 1951; 22: 466.

Roy, A.N. ~ Death after an injection of vitamin B12. Journal of the Indian Medical Association. 1961; 36: 262

Ruedemann, R. ~ Treatment of Psoriasis with large doses of vitamin B12, 1 - 100 mg/cm3. Preliminary clinical Report. Archives of Dermatology and Syphilology. 1954; 69: 738 - 739.

Rundles, R.W. ~ Prognosis in the neurologic manifestations of pernicious anemia. Blood. 1946; 1: 209 - 219.

Russell, J.S.R.; e.a. ~ Subacute combined degeneration of the spinal cord. Brain. 1900; 23: 39 - 110.

Russell, J.S.R. ~ The relationship of some forms of combined degeneration of the spinal cord to one another and anaemia. Lancet. 1898; 2: 4 - 14.