1. Molecular Genetics Research Group, Control of Pluripotency Laboratory, Department of Physiological Sciences I, Faculty of Medicine, University of Barcelona, Hospital Clinic, Barcelona, Spain.
2. Lions Eye Institute, Department of Stem Cell Research, Perth, Western Australia.
3. Departament de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain.
4. Division of Pediatrics and Child Health, Faculty of Medicine, University of Sydney Medical School, Westmead Childrens Hospital, Sydney, Australia.