The global, regional, and national burden of stomach cancer attributed to smoking in 204 countries, 1990-2019: A systematic analysis for the Global Burden of Disease Study 2019.

"CONFLICTS OF INTEREST The authors have each completed and submitted an ICMJE form for disclosure of potential conflicts of interest. The authors declare that they have no competing interests, financial or otherwise, related to the current work. All the authors report that since the initial planning of the work the present manuscript was supported from the Doctoral Research Initiation Fund of Affiliated Hospital of Southwest Medical University, China."

"This project is supported by Ningbo Natural Science Foundation (grant number: 2019A610213) and Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province (grant number: 2019E10020). No funding bodies had any role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript."