Duque-Díaz, Ewing, Diana Martínez-Rangel, and Silvia Ruiz-Roa. “Neuropeptides in the Human Brainstem”. Investigación Clínica 59, no. 2 (August 26, 2018): 161. Accessed April 6, 2026. https://www.produccioncientificaluz.org/index.php/investigacion/article/view/29100.