Serotonin and early cognitive development: variation in the tryptophan hydroxylase 2 gene is associated with visual attention in 7-month-old infants.
Journal of child psychology and psychiatry, and allied disciplines 2011 Nov 52 (11): 1144-52.
Leppänen Jukka M, Peltola Mikko J, Puura Kaija, Mäntymaa Mirjami, Mononen Nina, Lehtimäki Ter
TPH2 G/T polymorphism is associated with hyperphagia, IQ, and internalizing problems in Prader-Willi syndrome.
Journal of child psychology and psychiatry, and allied disciplines 2011 May 52 (5): 580-7.
Dykens Elisabeth M, Roof Elizabeth, Bittel Douglas, Butler Merlin