Zhang, Yi, Junyan Cao, Yinan Deng, Yiming Huang, Rong Li, Guozhen Lin, Min Dong, and Zenan Huang. “Pretreatment Plasma Fibrinogen Level As a Prognostic Biomarker for Patients With Lung Cancer”. Clinics 750 (February 28, 2020): e993. Accessed July 29, 2021. https://www.revistas.usp.br/clinics/article/view/167124.