Identification of orexin A- and orexin type 2 receptor-positive cells in the gastrointestinal tract of neonatal dogs. European Journal of Histochemistry, [S. l.], v. 52, n. 4, p. 229–236, 2009. DOI: 10.4081/1221. Disponível em: https://www.ejh.it/ejh/article/view/1221. Acesso em: 2 jun. 2025.