https://www.cochrane.org/fr/CD013121/LIVER_traitement-dans-la-prevention-dun-premier-episode-hemorragique-du-la-dilatation-des-veines-de 2021 France United Kingdom review of literature french abstract dilation of esophagus, nos Esophagus healing scar liver dilatation of esophagus cicatrix Hemorrhage wound healing cicatrization episode of Esophagus veins esophagus dilatation hemorrhage preventive treatment, nos hemorrhage of esophagus wound healing