1. Department of Neuroscience, Baylor College of Medicine, Houston, United States
2. Memory and Brain Research Center, Baylor College of Medicine, Houston, United States
3. Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, United States
4. Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, United States
5. Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, United States
6. Department of Physiology, McGill University, Montreal, Canada
7. Department of Neuroscience, Mahoney Institute for Neurosciences, Perelman School of Medicine, Philadelphia, United States