Retraction. Deficient expression of human leukocyte antigen class I antigen-processing machinery components in human esophageal squamous cell carcinoma (p) Deschamps, C. Diseases of the esophagus: official journal of the International Society for Diseases of the Esophagus 21(6): 574 2008 https://eurekamag.com/research/055/548/055548410.php