1. Hospital Universitario La Paz, IdiPAZ, Madrid, Spain
2. Orlando Immunology Center, Orlando FL, USA
3. Universitaetsklinikum Hamburg-Eppendorf, Hamburg, Germany
4. Atlanta ID Group, Atlanta GA, USA
5. Hospital de Santa Maria, Lisbon, Portugal
6. Southern California Kaiser Permanente Medical Group, Los Angeles CA, USA
7. Fondazione IRCCS San Raffaele del Monte Tabor, Milan, Italy
8. Chelsea and Westminster Hospital, London, UK
9. Gilead Sciences, Inc., Foster City, CA, USA