1. Primary Esophagogastric Neuroendocrine Carcinoma: a Retrospective Study from the Nottingham Upper Gastrointestinal Cancer Center
   Constantinos Savva et al, 2018, Journal of Gastrointestinal Cancer CrossRef
2. Gastric mixed adenoneuroendocrine carcinoma: correlation of histologic characteristics with prognosis
   Ling Nie et al, 2016, Annals of Diagnostic Pathology CrossRef
3. Gastric adenocarcinoma is concurrent with metastatic neuroendocrine cancer treated with nivolumab and chemotherapy: A case report
   Bing Yan et al, 2018, Molecular and Clinical Oncology CrossRef