Zhang, H., X. Guo, S. Zhong, T. Ge, S. Peng, P. Yu, and Z. Zhou. “Heterogeneous Vesicles in Mucous Epithelial Cells of Posterior Esophagus of Chinese Giant Salamander (Andrias Davidianus)”. European Journal of Histochemistry 59, no. 3 (August 25, 2015). Accessed June 4, 2020. https://www.ejh.it/index.php/ejh/article/view/2521.