About the Authors
- Daniel A. Beard
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* E-mail: dbeard@mcw.edu
Affiliation Biotechnology and Bioengineering Center, Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Martin J. Kushmerick
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Affiliation Department of Radiology, University of Washington, Seattle, Washington, United States of America
Competing Interests
The authors have declared that no competing interests exist.