J. Lennon

843 citations

37 papers · 568 indexed · h-index 11

Impact in

Gastroenterology top 5%
- Gastroesophageal reflux and treatments
Pulmonary and Respiratory Medicine top 10%
- Gallbladder and Bile Duct Disorders
- Biliary and Gastrointestinal Fistulas

Papers in

Gastroenterology 7
- Gastroesophageal reflux and treatments 5
Pulmonary and Respiratory Medicine 17
- Gallbladder and Bile Duct Disorders 10
- Biliary and Gastrointestinal Fistulas 4
- Gastric Cancer Management and Outcomes 4
- Metastasis and carcinoma case studies 3

Co-authors: Simon F. Crowe Padraic Mac Mathúna Raphael B. Merriman Peggy White Diarmuid P. O’Donoghue Patrick White Nezam H. Afdhal Amanda Long
Journals: Gastrointestinal Endoscopy (6 papers)Endoscopy (3 papers)Gut (3 papers)The American Journal of Surgery (2 papers)Irish Journal of Medical Science (1971 -) (11 papers)
Partner nations: Ireland Australia United Kingdom

In The Last Decade

J. Lennon

33 papers receiving 535 citations

Peers

Countries citing papers authored by J. Lennon

Since Specialization

Citations

This map shows the geographic impact of J. Lennon's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Lennon with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Lennon more than expected).

Fields of papers citing papers by J. Lennon

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. Lennon. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Lennon. The network helps show where J. Lennon may publish in the future.

Co-authors

The 25 scholars most cited alongside J. Lennon, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. Lennon Line = papers co-authored together J. Lennon links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Diagnosis by EUS trucut biopsy of extrapulmonary tuberculosis in a patient with Crohn's disease treated with infliximab Gastrointestinal Endoscopy ·Ferga C. Gleeson, Natasya Cathelea Millenitri Januatisa, Sinéad Kelly, Jan Soors, Elaine Kenny, Padraic MacMathúna, J. Lennon	2005	9
2	Management of Barrett’s oesophagus in 2001 in Ireland Irish Journal of Medical Science (1971 -) ·Alan C. Moss, Anarie Brady, Simon F. Crowe, J. Lennon, Padraic MacMathúna	2003	5
3	Primary amyloidosis of the stomach: EUS appearances Gastrointestinal Endoscopy ·Carol Goulding, Deirdre O’Hanlon, Natasya Cathelea Millenitri Januatisa, Donald Coney, J. Lennon	2002	9
4	Leiomyoma of the esophagus The American Journal of Surgery ·Deirdre O’Hanlon, Natasya Cathelea Millenitri Januatisa, J. Lennon, T. F. Gorey	2002	5
5	The role of surgery and laser ablation in oesophageal carcinoma Irish Journal of Medical Science (1971 -) ·E. Mulligan, M. G. O’Ríordáin, Anja Flückiger, Simon F. Crowe, J. Lennon, Padraic MacMathúna, J. M. Fitzpatrick, T. F. Gorey	1997	1
6	A comparison of laser photoablation and mesh stenting in the palliation of oesophageal cancer Gastrointestinal Endoscopy ·Geoffrey D. Clarke, Shahanaz, Jen-Feng Chang, Padraic MacMathúna, J. Lennon, Umeshchandra C Honnaddi	1997	1
7	Endoscopic balloon sphincteroplasty (papillary dilation) for bile duct stones: Efficacy, safety, and follow-up in 100 patients Gastrointestinal Endoscopy ·Padraic Mac Mathúna, Peggy White, Natasya Cathelea Millenitri Januatisa, Raphael B. Merriman, J. Lennon, Xingzhan Wei	1995	162
8	Endoscopic balloon sphincteroplasty for benign papillary stenosis — An alternative to surgical or endoscopic papillotomy? Irish Journal of Medical Science (1971 -) ·Padraic Mac Mathúna, J. Lennon, Simon F. Crowe	1993	3
9	A study of intracolonic hydrogen and methane levels during colonoscopy Irish Journal of Medical Science (1971 -) ·Edith Gallagher, Anarie Brady, P.Karthikraja, V. I. Ionkin, 房雄米沢, J. Lennon, Simon F. Crowe	1992	4
10	Endoscopic management of common duct stones with laparoscopic cholecystectomy Irish Journal of Medical Science (1971 -) ·Tetiana Viktorivna Havryliuk, Michael J. Kerin, Alicia Huazano-García, Simon F. Crowe, Padraic MacMathúna, J. Lennon, J. M. Fitzpatrick, T. F. Gorey	1991	12
11	Management of reflux oesophagitis: Role of weight loss and cimetidine Irish Journal of Medical Science (1971 -) ·Frank E. Murray, J. T. Ennis, J. Lennon, Simon F. Crowe	1991	6
12	Controlled trial of antimycobacterial therapy in Crohn's disease Digestive Diseases and Sciences ·Nezam H. Afdhal, Amanda Long, J. Lennon, Simon F. Crowe, Diarmuid P. O’Donoghue	1991	68
13	Anti-idiotype-induced, lipopolysaccharide-specific antibody response to Pseudomonas aeruginosa . The Journal of Immunology ·John R. Schreiber, Montesa Patawaran, Michael F. Tosi, J. Lennon, Gerald B. Pier	1990	27
14	Granulomatous hepatitis in secondary syphilis Irish Journal of Medical Science (1971 -) ·Frank E. Murray, Sean O’Loughlin, P. Dervan, J. Lennon, Simon F. Crowe	1990	4
15	Trait anxiety and coping style as predictors of pre‐operative anxiety British Journal of Clinical Psychology ·Elaine Fox, Ciaran A. O’Boyle, J. Lennon, P. W. N. Keeling	1989	12
16	Stress responses to two invasive medical investigations: Left‐sided colonoscopy and sigmoidoscopy Stress Medicine ·Elaine Fox, Ciaran A. O’Boyle, J. Lennon	1987	5
17	Diagnostic and prognostic problems in early gastric cancer The American Journal of Surgery ·Oscar Traynor, J. Lennon, P. Dervan, T. P. Corrigan	1987	7
18	Atraumatic non-distorting pyloric sphincter pressure studies. Gut ·A. J. McShane, C O'Morain, J. Lennon, 叶必华, Jun-lin Zhou	1980	9
19	Effect of cimetidine on the human lower oesophageal sphincter. Gut ·D. H. Osborne, J. Lennon, Mark Henderson, Graham P. Lidgard, R.A.S. Lee, 高志善	1977	15
20	Proceedings: Gastrin response to a standard meal after jejuno-ileal bypass in morbid obese patients. PubMed ·J. Lennon, Silva D.F.C., Alan Budi Kusuma, W. Sircus	1975	4

About J. Lennon

J. Lennon is a scholar working on Gastroenterology, Pulmonary and Respiratory Medicine, Surgery, Speech and Hearing and Genetics, having authored 37 papers that have together received 568 indexed citations. Recurring topics across this work include Esophageal and GI Pathology (10 papers), Gallbladder and Bile Duct Disorders (10 papers), Pediatric Hepatobiliary Diseases and Treatments (6 papers), Gastroesophageal reflux and treatments (5 papers), Biliary and Gastrointestinal Fistulas (4 papers), Gastric Cancer Management and Outcomes (4 papers), Eosinophilic Esophagitis (3 papers) and Metastasis and carcinoma case studies (3 papers). The work is most often cited by research in Gastroenterology (76 citations), Pulmonary and Respiratory Medicine (320 citations), Surgery (401 citations), Oncology (166 citations) and Genetics (68 citations). J. Lennon has collaborated with scholars based in Ireland, Australia and United Kingdom. Frequent co-authors include Simon F. Crowe, Padraic Mac Mathúna, Raphael B. Merriman, Peggy White, Diarmuid P. O’Donoghue, Patrick White, Nezam H. Afdhal, Amanda Long, Suzanne C. Purdy and M D O’Brien. Their work appears in journals such as Gastrointestinal Endoscopy, Endoscopy, Gut, The American Journal of Surgery and Irish Journal of Medical Science (1971 -).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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