Dr. David Lieberman’s career helped define how modern gastroenterology thinks about colorectal cancer screening, quality, and follow-up. From shaping national colonoscopy quality benchmarks and unified screening guidelines to building foundational biorepositories and databases, his work reframed screening as a system — not just a test. Now, as blood-based screening and risk-stratified approaches emerge, Lieberman’s focus has shifted to the biggest unresolved gap: ensuring patients who start screening actually complete it — because participation, not technology alone, ultimately determines whether screening saves lives.
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