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Vitamin B12.
Smith AD, Warren MJ, Refsum H. Smith AD, et al. Among authors: refsum h. Adv Food Nutr Res. 2018;83:215-279. doi: 10.1016/bs.afnr.2017.11.005. Epub 2018 Feb 2. Adv Food Nutr Res. 2018. PMID: 29477223 Review.
Screening for vitamin B-12 and folate deficiency in older persons.
Clarke R, Refsum H, Birks J, Evans JG, Johnston C, Sherliker P, Ueland PM, Schneede J, McPartlin J, Nexo E, Scott JM. Clarke R, et al. Among authors: refsum h. Am J Clin Nutr. 2003 May;77(5):1241-7. doi: 10.1093/ajcn/77.5.1241. Am J Clin Nutr. 2003. PMID: 12716678
Relations of glutamate carboxypeptidase II (GCPII) polymorphisms to folate and homocysteine concentrations and to scores of cognition, anxiety, and depression in a homogeneous Norwegian population: the Hordaland Homocysteine Study.
Halsted CH, Wong DH, Peerson JM, Warden CH, Refsum H, Smith AD, Nygård OK, Ueland PM, Vollset SE, Tell GS. Halsted CH, et al. Among authors: refsum h. Am J Clin Nutr. 2007 Aug;86(2):514-21. doi: 10.1093/ajcn/86.2.514. Am J Clin Nutr. 2007. PMID: 17684227 Free article.
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