1 Department of Digestive, Hepatobiliary and Liver Transplantation, Hopitaux Universitaires Pitié- Salpetrière-Charles Foix, Paris, France. Electronic address: elena.romanelli@aphp.fr.
2 Department of ENT, Cervico-Facial Surgery, Otology and Otoneurosurgery. Institut du Cerveau et de la Moelle Epinière (ICM), Hôpitaux Universitaires Pitié-Salpêtrière-Charles Foix, Paris, France.
3 Department of Digestive, Hepatobiliary and Liver Transplantation, Hopitaux Universitaires Pitié- Salpetrière-Charles Foix, Paris, France.