F. . Liu, N. . Wang, R. . Sun, S. Fu, Y. Chen, and P. Dong, “Serum KLF5 and CXCL12 levels in patients with chronic obstructive pulmonary disease complicated with type II respiratory failure: Serum KLF5 and CXCL12 levels in COPD with II-RF”, J Med Biochem, Mar. 2026, doi: 10.5937/jomb0-61621.