1. Laboratory of Stem Cells and Tissue Repair, Institute of Medical Biology, Immunos, A*STAR, Singapore, Singapore.
2. Membrane Biology Laboratory, Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore.
3. Department of Cell Biology and Cancer Center, University of Massachusetts Medical School, Worcester, Massachusetts.
4. Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.