1. Instituto Universitario Hospital Italiano, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
2. Argentine Rendu Study Group (ARG), Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
3. Internal Medicine Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
4. ENT Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
5. HHT Unit and Internal Medicine Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina