May 21, 2010 Poste, G. Challenges and Opportunities in Cancer Detection and Diagnosis: The Need for Systems-Based Approaches For Successful Validation of Biomarkers. NCI Cancer Early Detection Stakeholders Meeting. Rockville (May 21, 2010) Home ยป Poste, G. Challenges and Opportunities in Cancer Detection and Diagnosis: The Need for Systems-Based Approaches For Successful Validation of Biomarkers. NCI Cancer Early Detection Stakeholders Meeting. Rockville (May 21, 2010)