Zhang, H., Guo, X., Zhong, S., Ge, T., Peng, S., Yu, P., & Zhou, Z. (2015). Heterogeneous vesicles in mucous epithelial cells of posterior esophagus of Chinese giant salamander (Andrias davidianus). European Journal of Histochemistry, 59(3). https://doi.org/10.4081/ejh.2015.2521