1. The Serum Concentrations of Chemokine CXCL12 and Its Specific Receptor CXCR4 in Patients with Esophageal Cancer
   Marta Łukaszewicz-Zając et al, 2016, Disease Markers CrossRef
2. Cytokines Association with Clinical and Pathological Changes in Esophageal Squamous Cell Carcinoma
   Dorota Diakowska, 2013, Disease Markers CrossRef