1. Bioinformatics Support Program, Research and Education Services, Harvey Cushing/John Hay Whitney Medical Library, Yale University, New Haven, Connecticut, USA
2. Department of Dermatology, Yale School of Medicine, New Haven, Connecticut, USA
3. Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
4. Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA
5. RARAF Radiological Research Accelerator Facility, Nevis Laboratory, Columbia University, Irvington, New York, USA