1. Cancer Research UK Stem Cell Research Group, University of Manchester, Wilmslow Road, Manchester M20 4BX, UK.
2. Graduate Program in Areas of Basic and Applied Biology (GABBA), University of Porto, 4099-002 Porto, Portugal.
3. Cancer Research UK Haematopoietic Stem Cell Group, London Research Institute, 44 Lincoln’s Inn Fields, London WC2A 3LY, UK.
4. Stem Cell Biology Group, Paterson Institute for Cancer Research, University of Manchester, Wilmslow Road, Manchester M20 4BX, UK.