Fornai, F., D. Bucci, C. L. Busceti, P. Soldani, A. Pellegrini, and A. Paparelli. “Chemical Anatomy of Intrastriatal Tyrosine Hydroxylase-Neurons in Neonatal Life”. Italian Journal of Anatomy and Embryology, vol. 115, no. 1/2, Nov. 2010, p. 70, https://oajournals.fupress.net/index.php/ijae/article/view/4455.