Kim, J. H., Moon, W., Park, S. J., Park, M. I., Kim, S. E., Ku, K. H., … Choi, Y. J. (2014). Clinical impact of endoscopic ultrasonography for small rectal neuroendocrine tumors. Turkish Journal of Gastroenterology, 25(6), 657–660. https://doi.org/10.5152/tjg.2014.6647