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Validation of the diagnostic value of plasma pyridoxal 5'-phosphate measurements in vitamin B<sub>6<\/sub> nutrition in the rat. J Nutr 108: 545-553.","DOI":"10.1093\/jn\/108.4.545"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2) Cleary RE, Lumeng L, Li T-K. 1975. Maternal and fetal plasma levels of PLP at term: adequacy of vitamin B<sub>6<\/sub> supplementation during pregnancy. Am J Obstet Gynecol 121: 25-28.","DOI":"10.1016\/0002-9378(75)90968-0"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3) Brophy MH, Sitteri PK. 1975. Pyridoxal phosphate and hypertensive disorders of pregnancy. Am J Clin Nutr 121: 1076-1079.","DOI":"10.1016\/S0002-9378(16)33591-8"},{"key":"4","unstructured":"4) Furth-Walker D, Leibman D, Smolen A. 1989. Changes in pyridoxal phosphate and pyridoxamine phosphate in blood, liver and brain in the pregnant mouse. J Nutr 119: 750-756."},{"key":"5","doi-asserted-by":"crossref","unstructured":"5) Shane B, Constractor SF. 1975. Assessment of vitamin B<sub>6<\/sub> status. Studies on pregnant women and oral contraceptive users. Am J Clin Nutr 28: 739-747.","DOI":"10.1093\/ajcn\/28.7.739"},{"key":"6","doi-asserted-by":"crossref","unstructured":"6) Schuster K, Bailey LB, Mahan CS. 1984. Effect of maternal pyridoxine-HCl supplementation on the vitamin B-6 status of mother and infant and on pregnancy outcome. J Nutr 114: 977-988.","DOI":"10.1093\/jn\/114.5.977"},{"key":"7","unstructured":"7) Satowa S, Misawa M, Kamiyama I, Fujino Y. 1989. Studies on serum vitamin B<sub>6<\/sub> and PLP status in pregnant women. Vitamins 63: 361-368."},{"key":"8","unstructured":"8) Reinken L, Dapunt O. 1978. Vitamin B<sub>6<\/sub> nutriture during pregnancy. Int J Vitam Nutr Res 48: 341-347."},{"key":"9","unstructured":"9) Trumbo PR, Wang JW. 1993. Vitamin B-6 status indices are lower in pregnant than in nonpregnant women but urinary excretion of 4-pyridoxic acid does not differ. J Nutr 123: 2137-2141."},{"key":"10","doi-asserted-by":"crossref","unstructured":"10) Barnard HC, de Kock JJ, Vermaak WJH, Potgieter GM. 1987. A new perspective in the assessment of vitamin B-6 nutritional status during pregnancy in humans. J Nutr 117: 1303-1306.","DOI":"10.1093\/jn\/117.7.1303"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11) Lumeng L, Cleary RE, Wagner R, Yu PL, Li TK. 1976. Adequacy of vitamin B<sub>6<\/sub> supplementation during pregnancy: a prospective study. Am J Clin Nutr 29: 1376-1383.","DOI":"10.1093\/ajcn\/29.12.1376"},{"key":"12","doi-asserted-by":"crossref","unstructured":"12) Chang SJ. 1999. Adequacy of maternal pyridoxine supplementation during pregnancy in relation to the vitamin B<sub>6<\/sub> status and growth of neonates at birth. J Nutr Sci Vitaminol 45: 449-458.","DOI":"10.3177\/jnsv.45.449"},{"key":"13","doi-asserted-by":"crossref","unstructured":"13) Hansen CN, Shultz TD, Kwak HK, Memon HS, Leklem JE. 2001. Assessment of vitamin B-6 status in young women consuming a controlled diet containing four levels of vitamin B-6 provides an estimated average requirement and recommended dietary allowance. J Nutr 131: 1777-1786.","DOI":"10.1093\/jn\/131.6.1777"},{"key":"14","doi-asserted-by":"crossref","unstructured":"14) Leklem JE. 1990. Vitamin B-6: A status report. J Nutr 120: 1503-1507.","DOI":"10.1093\/jn\/120.suppl_11.1503"},{"key":"15","unstructured":"15) The Ministry of Health, Labour, and Welfare. 2009. Dietary Reference Intakes for Japanese 2010. Tokyo."},{"key":"16","doi-asserted-by":"crossref","unstructured":"16) Okubo H, Miyake Y, Sasaki S, Tanaka K, Murakami K, Hirota Y, Osaka Maternal and Child Health Study Group. 2011. Nutritional adequacy of three dietary patterns defined by cluster analysis in 997 pregnant Japanese women: the Osaka Maternal and Child Health Study. 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