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Updated: Jan 6, 2026

Biobank for Translational Medicine: Standard Operating Procedures for Optimal Sample Management
Published on: November 30, 2022
Abstract:
For someone with an outsized influence on a field he helped to create, Dan Callahan was anything but overbearing. Physically compact, thin, and wiry in older age, he spoke at the rapid speed of his mind. Soon after I met him-when I was on the cusp of what would become a year-long residency at The Hastings Center-I found myself seated in his decidedly quaint living room. Dan told a story that evening, one of many that has stuck in my head. It seemed to encapsulate his moral mindset and, in a way, his broader vision for bioethics. I am sure he has told the story many times to many people, but here it is as I recall it.
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