title: [A study on reflux esophagitis in progressive systemic sclerosis (PSS): second report. Nocturnal gastroesophageal motility and esophageal pH in supine position].
mesh_terms: D000328:Adult; D004942:Esophagitis, Peptic / Q000209:etiology*; D004947:Esophagus / Q000378:metabolism*; D005260:Female; D005769:Gastrointestinal Motility; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008875:Middle Aged; D011187:Posture; D012595:Scleroderma, Systemic / Q000150:complications / Q000503:physiopathology*