Phuong-Anh T Duong1, Rebecca Neill2, Matthew Zygmont3. 1. Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia. Electronic address: pduong3@emory.edu. 2. Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia; Environmental Health and Safety Office, Emory University, Atlanta, Georgia. 3. Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia.