1. Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
2. Epithelial Biology Laboratory, Institute of Medical Biology, A*STAR, Singapore, Singapore.
3. National University of Singapore Tissue Engineering Program (NUSTEP), Life Sciences Institute, National University of Singapore, Singapore, Singapore.
4. Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore.