Liu, C., Liu, C., Liu, P., Liu, X., Niu, W., Wu, P., . . . Yu, J. (2025, November). Global, regional, and national burden and trends of pancreatic cancer, 1990–2021: A systematic analysis for the Global Burden of Disease Study 2021. Frontiers in Oncology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Liu, Chunlong, Chunlong Liu, Pengpeng Liu, Xue Liu, Wang Niu, Panpan Wu, Panpan Wu, Jiangtao Yu, و Jiangtao Yu. "Global, Regional, and National Burden and Trends of Pancreatic Cancer, 1990–2021: A Systematic Analysis for the Global Burden of Disease Study 2021." Frontiers in Oncology Nov. 2025.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Liu, Chunlong, et al. "Global, Regional, and National Burden and Trends of Pancreatic Cancer, 1990–2021: A Systematic Analysis for the Global Burden of Disease Study 2021." Frontiers in Oncology, Nov. 2025.