1. Amess JAL, Burman JF, Rees GM, Nancekievill DG, Mollin DL (1978) Megaloblastic haemopoiesis in patients receiving nitrous oxide. Lancet II:339?342
2. Anderson CM, Burke V (eds) (1975) Paediatric Gastroenterology. Blackwell, Oxford
3. Baumgartner ER, Wick H, Maurer R, Egli, Steinmann B (1979a) Congenital defect in intracellular cobalamin metabolism resulting in homocystinuria and methylmalonic aciduria. I. Case report and histopathology. Helv Paediat Acta 34:465?482
4. Baumgartner ER, Wick H, Linnell JC, Gaull GE, Bachmann C, Steinmann B (1979b) Congenital defect in intracellular cobalamin metabolism resulting in homocystinuria and methylmalonic aciduria. II. Biochemical investigations. Helv Paediat Acta 34:483?496
5. Benson RE, Rappazzo ME, Hall CA (1972) Late transport of vitamin B12 by transcobalamin II. J Lab Clin Med 80:488?495