1. A Gastric Lesion Revealing a Small-Cell Lung Cancer: A Rare Case
   Miguel Mascarenhas Saraiva et al, 2021, GE Port J Gastroenterol CrossRef
2. Gastric Metastasis of Primary Lung Cancer: Case Report and Systematic Review With Pooled Analysis.
   Dong Tang et al, 2022, Front Oncol CrossRef