Ryan BM, Pine SR, Chaturvedi AK et al. A combined prognostic serum interleukin-8 and interleukin-6 classifier for stage 1 lung cancer in the prostate, lung, colorectal, and ovarian cancer screening trial (2014) J Thorac Oncol, 9(10), 1494–14503. Here, IL6 is linked to lung cancer.