Berrios, Idanis, et al. “Visualization of Six Unique Morphological Subpopulations of Adult Frog Dorsal Root Ganglion Neurons at the Light Microscopic Level”. Puerto Rico Health Sciences Journal, vol. 27, no. 1, May 2008, https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/33.