RATIONALE: Studying samples of tissue, blood, urine, stool, and other biological fluids from patients with cancer and from healthy volunteers undergoing colono…

Colorectal CancerEsophageal CancerGastric Cancer+2 more

~Estimated

~$10 – $750

Vanderbilt University Medical CenterNCT00899626

Biomarkers and Dysplastic Respiratory Epithelium

RATIONALE: Studying samples of sputum and tissue in the laboratory from patients with dysplasia or cancer may help doctors identify and learn more about biomar…

Esophageal CancerHead and Neck CancerLung Cancer+1 more

~Estimated

~$10 – $750

University of Colorado, DenverNCT00900419