About the Authors
Medical Research Council (MRC) Centre for Developmental Neurobiology, King's College London, London, United Kingdom
National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, India
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: DJB DWW. Performed the experiments: DJB. Analyzed the data: DJB EB DWW. Contributed reagents/materials/analysis tools: DJB OVR KV DWW. Wrote the paper: DJB DWW.