Pooley, E., Houston, K., Hawton, K., & Harrison, P. (2003). Deliberate self-harm is associated with allelic variation in the tryptophan hydroxylase gene (TPH A779C), but not with polymorphisms in five other serotonergic genes. Cambridge University Press.

Pooley, E., K. Houston, K. Hawton, and P. Harrison. Deliberate Self-harm Is Associated with Allelic Variation in the Tryptophan Hydroxylase Gene (TPH A779C), but Not with Polymorphisms in Five Other Serotonergic Genes. Cambridge University Press, 2003.

Pooley, E., et al. Deliberate Self-harm Is Associated with Allelic Variation in the Tryptophan Hydroxylase Gene (TPH A779C), but Not with Polymorphisms in Five Other Serotonergic Genes. Cambridge University Press, 2003.