{Reference Type}: Letter {Title}: Low-grade mixed neuroendocrine-non-neuroendocrine neoplasm of the extrahepatic bile duct: A rare tumour with 11 years' follow-up before surgery. {Author}: Kubota K;Sato Y;Iwaya M;Notake T;Shimizu A;Iguchi T;Uehara T;Ota H;Soejima Y; {Journal}: Pathol Int {Volume}: 73 {Issue}: 4 {Year}: 04 2023 7 {Factor}: 2.121 {DOI}: 10.1111/pin.13317