1. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
2. Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA.
3. Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149 13th Street, Charlestown, MA 02129, USA.
4. Departments of Anatomic Pathology and Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA.
5. Department of Molecular, Cellular, and Developmental Biology (MCDB), University of California, Santa Barbara, Santa Barbara, CA 93117, USA.
6. Broad Institute of Harvard and MIT, 7 Cambridge Center, MA 02142, USA.
7. Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, MA 02138, USA.