RATIONALE: Collecting and storing samples of tissue, blood, and saliva from patients with cancer to test in the laboratory may help the study of cancer in the future. PURPOSE: This research study is collecting blood and tissue samples from patients with stomach cancer, esophageal cancer, or gastroesophageal junction cancer, studying them in the laboratory, and storing them for future studies.
Aug 31,2002
All
16 Years
N/A
16 Years
N/A
4000
