Dennis R. Trumble
Dennis R. Trumble is Senior Bioengineer in the Department of Cardiothoracic Surgery at Allegheny General Hospital (Pittsburgh, Pennsylvania) and Research Instructor of Surgery at Drexel University College of Medicine. Correspondence may be addressed to D.R. Trumble, Cardiac Surgery Research, Allegheny General Hospital, 320 East North Avenue, Pittsburgh, PA, 15212.
By any objective measure, the evolution of species ranks among the most successful scientific theories ever.g
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