1. Department of Developmental and Cell Biology, University of California Irvine, Irvine, United States
2. Department of Biology, University of Rochester, Rochester, United States
3. Equip de Proliferació i Senyalització Cel.lular, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
4. Department of Physiology and Biophysics, University of California Irvine, Irvine, United States
5. Department of Pathology and Laboratory Medicine, Keck School of Medicine, University of Southern California, Los Angeles, United States
6. Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain