1 The Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA.
2 Department of Internal Medicine, Division of Pulmonary, Critical Care and Occupational Medicine, University of Iowa, Iowa City, IA.
3 The Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA; Department of Internal Medicine, Division of Pulmonary, Critical Care and Occupational Medicine, University of Iowa, Iowa City, IA; Department of Radiology, University of Iowa, Iowa City, IA.
4 The Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA; Department of Radiology, University of Iowa, Iowa City, IA. Electronic address: joe-reinhardt@uiowa.edu.