Pellitteri, R., A. Zicca, G. Mancardi, T. Savio, and A. Cadoni. “Schwann Cell-Derived Factors Support Serotoninergic Neuron Survival and Promote Neurite Outgrowth”. European Journal of Histochemistry, vol. 45, no. 4, Dec. 2009, pp. 367-76, doi:10.4081/1645.