1. 1Department of Development and Regeneration, Cluster of Stem Cell and Developmental Biology, Unit of Stem Cell Research, KU Leuven (University of Leuven), Leuven, Belgium
2. 2Department of Anatomy and Structural Science, Yamagata University Faculty of Medicine, Yamagata, Japan
3. 3Department of Chemistry, Laboratory of Molecular Imaging and Photonics, KU Leuven, Leuven, Belgium
4. 4Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM), Brussels, Belgium
5. 5WELBIO, Université Libre de Bruxelles (ULB), Brussels, Belgium