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Pfeiffer CM, Caudill SP, Gunter EW, Bowman BA, Jacques PF, Selhub J, Johnson CL, Miller DT, Sampson EJ.Pfeiffer CM, et al. Among authors: sampson ej.J Nutr. 2000 Nov;130(11):2850-4. doi: 10.1093/jn/130.11.2850.J Nutr. 2000.PMID: 11053531