"Kazakh patients with HLA-DRB1*1501 HLA-DQB1*0301 and HLA-DQB1* 0602 may be susceptible to esophageal squamous cell carcinoma. HLA-DQB1*0602 correlates with well-differentiated esophageal squamous cell carcinoma; Observational study of gene-disease association. (HuGE Navigator)"xsd:string