1. Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
2. Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium
3. Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, Kanagawa, Japan
4. Novo Nordisk Foundation Center for Stem Cell Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark