1. Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel HillChapel Hill, NC, USA
2. Division of Cell Maintenance, Institute of Molecular Embryology and Genetics (IMEG), Kumamoto University, Kumamoto, Japan
3. Life Science Research Center, University of Ostrava, Ostrava, Czech Republic
4. National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA