A cooperative network of trained sites for the conduct of a complex clinical trial: A new concept in multicenter clinical research von Davidson, Robert M., McNeer, J. Frederick, Logan, Leanne, Higginbotham, Michael B., Anderson, Jerome, Blackshear, Joseph, Chu, Alan, Hettleman, Bruce, McGrew, Frank, Meesse, Roderick, O'Connor, Christopher, Schneider, Ricky, Wagner, Galen S.

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