1. Infectious Diseases Unit, Azienda Ospedaliera Nazionale SS. Antonio e Biagio e C. Arrigo, Alessandria, Italy
2. Immunology Laboratory, Assistance Publique-Hôpitaux de Paris (APHP) Pitié-Salpêtrière Hospital, Paris, France
3. Internal Medicine Unit, APHP Jean Verdier Hospital, Bondy, France
4. Radiology Unit, APHP Jean Verdier Hospital, Bondy, France