1. Center of Animal Biotechnology and Gene Therapy and Department of Biochemistry and Molecular Biology, School of Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
2. Institute of Neuroscience and Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
3. Institut de Génétique Moléculaire de Montpellier, Université de Montpellier 1 & 2, 34293 Montpellier, France.
4. Institut Català de Recerca i Estudis Avançats, 08193 Barcelona, Spain.