https://www.sfed.org/actualites/dernieres-recommandations-de-lesge-sur-la-prise-en-charge-de-loesophage-de-barrett-les-points-clefs/ 2024 France guideline french abstract Point Length Unit barrett esophagus barrett's esophagus patient care management TIP GCT Study Identifier Last KAT5 wt Allele Charge Point health planning guidelines Barrett Esophagus TIP Regimen Tip