1. Department of Biomedical Data Sciences, Section Molecular Epidemiology, Leiden University Medical Center, Leiden, Netherlands.
2. LUMC hiPSC Hotel, Leiden University Medical Center, Leiden, Netherlands.
3. Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands.
4. Section Electron Microscopy, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands.
5. Department of Orthopedic Surgery, Washington University and Shriners Hospitals for Children, St. Louis, MO, USA.