1. 1 Department of Tumor Biology Institute for Cancer Research , The Norwegian Radium Hospital , Oslo University Hospital , Montebello , Norway
2. 3 Center for Cancer Cell Reprogramming , Institute of Clinical Medicine, Faculty of Medicine , University of Oslo , Montebello , Norway
3. 2 Department of Molecular Cell Biology , Institute for Cancer Research , The Norwegian Radium Hospital , Oslo University Hospital , Montebello , Norway
4. 4 Military Institute of Hygiene and Epidemiology , Warsaw , Poland