1. PACT & Health LLC, Branford, CT, USA
2. Department of Chemistry, Oakland University, Rochester, MI, USA;
3. Department of Radiobiology, Northwestern University's Feinberg School of Medicine, Chicago, IL, USA;
4. Department of Research and Development, Shanghai Proton and Heavy Ion Center, Shanghai, People's Republic of China;
5. Department of Surgery, University of Kansas Medical Center (Adjunct), and PACT & Health LLC, Branford, CT, USA