dysmotility oesophagusesophageal dysmotility causesscleroderma esophageal dysmotilityesophageal dysmotility syndromesevere esophageal dysmotilityesophageal dysmotility disorderdistal esophageal dysmotilitymoderate esophageal dysmotilitymild esophageal dysmotilityesophagus esophagitisesophagus inflammation treatmentdiverticula in the esophagus