Nexø, E, Hvas, A-M, Bleie, Ø, Refsum, H, Fedosov, S, Vollset, S E, Schneede, J, Nordrehaug, J E, Ueland, P E & Nygard, O K 2002, ' Holo-transcobalamin is an early marker of changes in cobalamin homeostasis. A randomized placebo-controlled study ', Clin. Chem., vol. 48, pp. 1768-1771 . Scopus-Elsevier Nexø, E, Hvas, A-M, Bleie, O, Refsum, H, Fedosov, S, Vollset, S E, Schneede, J, Nordrehaug, J E, Ueland, P M & Nygard, O K 2002, ' Holo-transcobalamin is an early marker of changes in cobalamin homeostasis. A randomized placebo-controlled study ', Clinical Chemistry and Laboratory Medicine, vol. 48, no. 10, pp. 1768-1771 .