The Imperative of Overcoming Barriers to the Conduct of Large, Simple TrialsNews Home - The Imperative of Overcoming Barriers to the Conduct of Large, Simple Trials Posted on April 9, 2014July 1, 2021 by kristi.geercken@duke.edu The Imperative of Overcoming Barriers to the Conduct of Large, Simple Trials The Imperative of Overcoming Barriers to the Conduct of Large, Simple Trials