Primary pure pancreatic‐type acinar cell carcinoma of the stomach. Issue 11 (9th September 2021) - Uno, Shunsuke; Tanaka, Yasuyuki; Shibuya, Shinsuke; Okada, Keijiro; Fujii, Shigehiko; Kusaka, Toshihiro; Minamiguchi, Sachiko; Kushima, Ryoji; Haga, Hironori