Biomarkers in Patients With Respiratory Tract Dysplasia or Lung Cancer, Head and Neck Cancer, or Aerodigestive Tract Cancer and in Normal Volunteers
Conditions
- Esophageal Cancer
- Head and Neck Cancer
- Lung Cancer
- Precancerous Condition
Interventions
- OTHER: immunohistochemistry staining method
- OTHER: laboratory biomarker analysis
- OTHER: sputum cytology
- PROCEDURE: biopsy
Sponsor
University of Colorado, Denver
Collaborators