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Changes in sample size and length of follow-up to maintain power in the coronary artery bypass graft (CABG) patch trial.

J. Bigger, L. Rolnitzky, D. Egan, 1998, Controlled clinical trials.

The REMATCH trial: rationale, design, and end points. Randomized Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure.

J T Watson, P A Shapiro, A J Moskowitz, 1999, The Annals of thoracic surgery.