ALB and esophageal squamous cell carcinoma: In patients with inoperable ESCC, we built prognosis score based on four clinical factors including tumor located at 25cm and lower, abdominal and retroperitoneal lymph node invasion, hematogenous metastasis and albumin level no more than 39g/L; and found that survival of patients with none of the four factors was significantly better than those with three to four factors.