Mori, H., Kobara, H., Nishiyama, N., Fujihara, S., & Masaki, T. (2015). Open Biopsy guided by Endoscopic Ultrasonography from a Gastric Submucosal Tumor growing Outside the Stomach. Journal of Gastrointestinal and Liver Diseases, 24(1), 106–108. https://doi.org/10.15403/jgld.2014.1121.ssv