1. Laboratory of Retrovirology, The Rockefeller University, New York, United States
2. Laboratory of Molecular Immunology The Rockefeller University, New York, United States
3. Laboratory of Virology and Infectious Disease The Rockefeller University, New York, United States
4. Lindsley F. Kimball Research Institute, New York Blood Center, New York, United States
5. Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
6. Howard Hughes Medical Institute, The Rockefeller University, New York, United States