1. Instituto de Química Médica (IQM-CSIC), 28006 Madrid, Spain
2. Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, University of Leuven, B-3000 Leuven, Belgium
3. Department of Biochemistry and Molecular Biology, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, 16802 State College, Pennsylvania, United States
4. Department of Medicine, The Pennsylvania State University College of Medicine, 17033 Hershey, Pennsylvania, United States
5. Departamento de Ciencias Biomédicas y Unidad Asociada IQM-UAH, Universidad de Alcalá, Alcalá de Henares, E-28805 Madrid, Spain