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24. Factors which alter the metabolism of tryptophan. Price JM. Med J Osaka Univ; 1968 Sep; 19(1):31-3. PubMed ID: 4886324 [No Abstract] [Full Text] [Related]
25. Experimental alteration of tryptophan metabolism by methionine: neuropharmacologic implications. Sprince H, Parker CM, Jameson D, Josephs JA. Int J Neuropharmacol; 1969 Dec; 8(6):615-26. PubMed ID: 4243547 [No Abstract] [Full Text] [Related]
29. Efficiency of conversion of tryptophan to niacin in humans. Nakagawa I, Takahashi T, Sasaki A, Kajimoto M, Suzuki T. J Nutr; 1973 Aug; 103(8):1195-9. PubMed ID: 4268952 [No Abstract] [Full Text] [Related]
31. The vitamin B6 requirement in oral contraceptive users. II. Assessment by tryptophan metabolites, vitamin B6, and pyridoxic acid levels in urine. Donald EA, Bossé TR. Am J Clin Nutr; 1979 May; 32(5):1024-32. PubMed ID: 433819 [Abstract] [Full Text] [Related]
32. The effect of hormones and vitamin B6 on urinary excretion of metabolites of the kynurenine pathway. Wolf H. Scand J Clin Lab Invest Suppl; 1974 May; 136():1-186. PubMed ID: 4275489 [No Abstract] [Full Text] [Related]
33. [Functional exploration at various levels of the tryptophan--nicotinic acid metabolic line]. Chiancone FM. Acta Vitaminol Enzymol; 1972 May; 26(3):81-92. PubMed ID: 4264240 [No Abstract] [Full Text] [Related]