1. Cobalamin and folate: Recent developments;Chanarin, I.; Deacon, R.; Lumb, M.; Perry, J.;Jf Clin Pathol,1992
2. Gas chromatography mass spectrometry screening of urinary methylmalonic acid: early detection of vitamin B,, (cobalamin) deficiency to prevent permanent neurologic disability;Norman, E.J.,1984
3. Isotope-dilution assay for urinary methylmalonic acid in the diagnosis of vitamin B,2 deficiency. A prospective clinical evaluation;Ann Int Med,1987
4. Increased urinary methylmalonic acid excretion in breast fed infants of vegetarian mothers and an identification of an acceptable dietary source of;Specker, B.L.; Miller, D.; Norman, E.J.; Greene, H.; Hayes, K.C.;J Clin Nutr,1988
5. Acanthamoeba keratitis: experience in a non-specialist laboratory;Anderson, D.; Soo, S.S.; Towler, H.;Y Clin Pathol,1991