R. Marzagalli, R. Mazzone, G. M. Leggio, K. Keay, and A. Castorina, “Enhanced expression of PACAP and of its high affinity receptor (PAC1) in the hippocampus and cerebral cortex of dopamine D3 knockout mice”, Ital J Anat Embryol, vol. 120, no. 1, p. 172, Sep. 2015.