Clinical Impact of ATRX, TSC2, and PTEN Expression on Prognosis in Patients with Grade 1 and 2 Pancreatic Neuroendocrine Tumor. (2021) - Okano, K.; Uemura, J.; Oshima, M.; Suto, H.; Ando, Y.; Matsukawa, H.; Kadota, K.; Suzuki, Y.