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