Coppen A, Shaw DM, Herzberg B, Maggs R (December 1967). "Tryptophan in the treatment of depression". Lancet. Originally published as Volume 2, Issue 7527. 2 (7527): 1178–80. doi:10.1016/s0140-6736(67)91894-6. PMID4168381.
Wang L, Erlandsen H, Haavik J, Knappskog PM, Stevens RC (October 2002). "Three-dimensional structure of human tryptophan hydroxylase and its implications for the biosynthesis of the neurotransmitters serotonin and melatonin". Biochemistry. 41 (42): 12569–74. doi:10.1021/bi026561f. PMID12379098.
Walther DJ, Bader M (November 2003). "A unique central tryptophan hydroxylase isoform". Biochemical Pharmacology. 66 (9): 1673–80. doi:10.1016/S0006-2952(03)00556-2. PMID14563478.
Coppen A, Shaw DM, Herzberg B, Maggs R (December 1967). "Tryptophan in the treatment of depression". Lancet. Originally published as Volume 2, Issue 7527. 2 (7527): 1178–80. doi:10.1016/s0140-6736(67)91894-6. PMID4168381.
Wang L, Erlandsen H, Haavik J, Knappskog PM, Stevens RC (October 2002). "Three-dimensional structure of human tryptophan hydroxylase and its implications for the biosynthesis of the neurotransmitters serotonin and melatonin". Biochemistry. 41 (42): 12569–74. doi:10.1021/bi026561f. PMID12379098.
Walther DJ, Bader M (November 2003). "A unique central tryptophan hydroxylase isoform". Biochemical Pharmacology. 66 (9): 1673–80. doi:10.1016/S0006-2952(03)00556-2. PMID14563478.