{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T15:19:11Z","timestamp":1777907951987,"version":"3.51.4"},"reference-count":15,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[1991,1,1]],"date-time":"1991-01-01T00:00:00Z","timestamp":662688000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trop Doct"],"published-print":{"date-parts":[[1991,1]]},"abstract":"<jats:p>In 4 years, 200 patients were admitted to the University of Maiduguri Teaching Hospital, in the Northern Savannah of Nigeria, with a clinical diagnosis of peptic ulcer; 60 had the diagnosis of duodenal ulcer confirmed on barium meal or at operation, giving an incidence of 6\/1000 adult admissions (excluding obstetrics). There were no gastric ulcers.<\/jats:p>\n                  <jats:p>Forty-four patients had a \u2018simple ulcer\u2019, 10 presented with gastric outlet obstruction, five with peritonitis following perforation and one with haematemesis. There were 44 males, and 16 females, with a mean age of 34 years and mean length of history of 44 months.<\/jats:p>\n                  <jats:p>Contrary to previous published reports improved diagnostic facilities have shown duodenal ulcer to be relatively common in the Northern Savannah of West Africa.<\/jats:p>","DOI":"10.1177\/004947559102100107","type":"journal-article","created":{"date-parts":[[2017,1,12]],"date-time":"2017-01-12T20:17:33Z","timestamp":1484252253000},"page":"16-18","source":"Crossref","is-referenced-by-count":7,"title":["Incidence of Duodenal Ulcer in the Northern Savannah of Nigeria"],"prefix":"10.1177","volume":"21","author":[{"given":"C","family":"Holcombe","sequence":"first","affiliation":[{"name":"Academic Department of Surgery, University of Maiduguri, Maiduguri, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H","family":"Okolie","sequence":"additional","affiliation":[{"name":"Academic Department of Surgery, University of Maiduguri, Maiduguri, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1991,1,1]]},"reference":[{"key":"bibr1-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(54)90603-0"},{"key":"bibr2-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1136\/gut.16.7.564"},{"key":"bibr3-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1016\/0277-9536(86)90083-3"},{"key":"bibr4-004947559102100107","first-page":"5","volume":"59","author":"Levin A","year":"1981","journal-title":"S Afr Med J"},{"key":"bibr5-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1007\/BF01654732"},{"key":"bibr6-004947559102100107","first-page":"1","volume":"47","author":"Solanke TF","year":"1970","journal-title":"East Afr Med J"},{"key":"bibr7-004947559102100107","first-page":"283","volume":"30","author":"Mabogunje OA","year":"1985","journal-title":"J R Coll Surg Edinb"},{"key":"bibr8-004947559102100107","first-page":"359","volume":"31","author":"Mabogunje OA","year":"1978","journal-title":"Trop Geogr Med"},{"key":"bibr9-004947559102100107","first-page":"327","volume":"70","author":"Mabogunje OA","year":"1985","journal-title":"Int Surg"},{"key":"bibr10-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1097\/00001574-198811000-00009"},{"key":"bibr11-004947559102100107","first-page":"1010","volume":"65","author":"Marks IN","year":"1984","journal-title":"S Afr Med J"},{"key":"bibr12-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(88)90929-4"},{"key":"bibr13-004947559102100107","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.27.8.1870-1873.1989"},{"key":"bibr14-004947559102100107","unstructured":"Holcombe C, Omatara BA, Jones DM, Eldridge J. The epidemiology of Campylobacter pylori in Northern Nigeria (abstract). Klin Wochenschr 1989; Supplementum XVIII: number 181"},{"key":"bibr15-004947559102100107","first-page":"299","volume-title":"Peptic ulcer disease","author":"Emas S","year":"1985"}],"container-title":["Tropical Doctor"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/004947559102100107","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/004947559102100107","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T13:52:17Z","timestamp":1777643537000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/004947559102100107"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1991,1]]},"references-count":15,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1991,1]]}},"alternative-id":["10.1177\/004947559102100107"],"URL":"https:\/\/doi.org\/10.1177\/004947559102100107","relation":{},"ISSN":["0049-4755","1758-1133"],"issn-type":[{"value":"0049-4755","type":"print"},{"value":"1758-1133","type":"electronic"}],"subject":[],"published":{"date-parts":[[1991,1]]}}}