1. Max F. Perutz Laboratories; Department of Chromosome Biology; University of Vienna; Vienna, Austria
2. Cancer Research Institute; Slovak Academy of Sciences; Bratislava, Slovak Republic
3. Department of Microbiology and Physiological Systems and Program in Cell Dynamics; University of Massachusetts Medical School; Worcester, MA USA
4. Department of Biological Medicine; School of Life Sciences; Xiamen University; Xiamen, China
5. Department of Genetics; Comenius University; Bratislava, Slovak Republic