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In the distal oesophagus propagating pressure waves were more frequent during the day than during the night and most frequent during meals. The state of consciousness rather than body position per se is important in determining the frequency of simultaneous contractions in the distal oesophagus.<\/jats:p>","DOI":"10.1136\/gut.32.11.1270","type":"journal-article","created":{"date-parts":[[2007,9,18]],"date-time":"2007-09-18T17:41:31Z","timestamp":1190137291000},"page":"1270-1274","source":"Crossref","is-referenced-by-count":9,"title":["Ambulatory 23 hour recording of intraoesophageal pressures in normal volunteers: a propagation analysis from one proximal and two distal recording sites."],"prefix":"10.1136","volume":"32","author":[{"given":"S","family":"Kruse-Andersen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L","family":"Wallin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T","family":"Madsen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1991,11,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1978","DOI":"10.1016\/0016-5085(86)90270-2","article-title":"24-hour recording of esophageal pressure and pH in patients with noncardiac chest pain","volume":"90","author":"Janssens, J.; Vantrappen, G.; Ghillebert, G.","year":"1986","unstructured":"Janssens J, Vantrappen G, Ghillebert G. 24-hour recording of esophageal pressure and pH in patients with noncardiac chest pain. 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