P. J. Hamlin

1.6k total citations · 1 hit paper
25 papers, 859 citations indexed

About

P. J. Hamlin is a scholar working on Epidemiology, Genetics and Surgery. According to data from OpenAlex, P. J. Hamlin has authored 25 papers receiving a total of 859 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Epidemiology, 15 papers in Genetics and 6 papers in Surgery. Recurrent topics in P. J. Hamlin's work include Inflammatory Bowel Disease (14 papers), Microscopic Colitis (14 papers) and Gastrointestinal motility and disorders (5 papers). P. J. Hamlin is often cited by papers focused on Inflammatory Bowel Disease (14 papers), Microscopic Colitis (14 papers) and Gastrointestinal motility and disorders (5 papers). P. J. Hamlin collaborates with scholars based in United Kingdom, United States and Netherlands. P. J. Hamlin's co-authors include Alexander C. Ford, David J. Gracie, Ruchit Sood, Andrew J. Irvine, Antonina Mikocka‐Walus, Saqib Mumtaz, Christopher J.M. Williams, Simon Everett, Michael Sprakes and Barry Hall and has published in prestigious journals such as Gastroenterology, Annals of the Rheumatic Diseases and Alimentary Pharmacology & Therapeutics.

In The Last Decade

P. J. Hamlin

25 papers receiving 845 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The influence of the brain–gut axis in inflammatory bowel disease and possible implications for treatment

2019 248 citations David J. Gracie, P. J. Hamlin et al. The Lancet. Gastroenterology & hepatology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
P. J. Hamlin United Kingdom	15	413	361	259	141	127	25	859
Pontus Karling Sweden	20	385 0.9×	339 0.9×	313 1.2×	347 2.5×	347 2.7×	65	1.3k
Itta M. Minderhoud Netherlands	10	303 0.7×	318 0.9×	240 0.9×	138 1.0×	28 0.2×	12	619
R. Tambasco Italy	9	264 0.6×	210 0.6×	151 0.6×	96 0.7×	29 0.2×	20	470
Corey Powell United States	12	147 0.4×	184 0.5×	97 0.4×	189 1.3×	78 0.6×	33	583
George Alex Australia	17	322 0.8×	317 0.9×	165 0.6×	317 2.2×	83 0.7×	47	796
Kara Bradford United States	8	119 0.3×	91 0.3×	147 0.6×	59 0.4×	52 0.4×	11	481
R. Gillberg Sweden	17	446 1.1×	556 1.5×	633 2.4×	442 3.1×	39 0.3×	28	1.1k
A. Bertani Italy	9	139 0.3×	162 0.4×	96 0.4×	58 0.4×	75 0.6×	16	473
Manuel Castro‐Fernández Spain	21	103 0.2×	263 0.7×	381 1.5×	754 5.3×	53 0.4×	83	1.4k
Günther Spahn Germany	14	84 0.2×	154 0.4×	29 0.1×	112 0.8×	75 0.6×	29	635

Countries citing papers authored by P. J. Hamlin

Since Specialization

Citations

This map shows the geographic impact of P. J. Hamlin'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 P. J. Hamlin with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. J. Hamlin more than expected).

Fields of papers citing papers by P. J. Hamlin

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. J. Hamlin. 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 P. J. Hamlin. The network helps show where P. J. Hamlin may publish in the future.

Co-authorship network of co-authors of P. J. Hamlin

This figure shows the co-authorship network connecting the top 25 collaborators of P. J. Hamlin. A scholar is included among the top collaborators of P. J. Hamlin based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with P. J. Hamlin. P. J. Hamlin is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Gracie, David J., P. J. Hamlin, & Alexander C. Ford. (2019). The influence of the brain–gut axis in inflammatory bowel disease and possible implications for treatment. The Lancet. Gastroenterology & hepatology. 4(8). 632–642. 248 indexed citations breakdown →

Hall, Barry, P. J. Hamlin, David J. Gracie, & Alexander C. Ford. (2018). The Effect of Antidepressants on the Course of Inflammatory Bowel Disease. Canadian Journal of Gastroenterology and Hepatology. 2018. 1–11. 27 indexed citations

Gracie, David J., Andrew J. Irvine, Ruchit Sood, et al.. (2017). Effect of psychological therapy on disease activity, psychological comorbidity, and quality of life in inflammatory bowel disease: a systematic review and meta-analysis. The Lancet. Gastroenterology & hepatology. 2(3). 189–199. 173 indexed citations

Selinger, Christian P., Marco Vincenzo Lenti, David J. Gracie, et al.. (2017). Infliximab Therapeutic Drug Monitoring Changes Clinical Decisions in a Virtual Biologics Clinic for Inflammatory Bowel Disease. Inflammatory Bowel Diseases. 23(12). 2083–2088. 16 indexed citations

Gracie, David J., Christopher J.M. Williams, Ruchit Sood, et al.. (2016). Negative Effects on Psychological Health and Quality of Life of Genuine Irritable Bowel Syndrome–type Symptoms in Patients With Inflammatory Bowel Disease. Clinical Gastroenterology and Hepatology. 15(3). 376–384.e5. 83 indexed citations

Hamlin, P. J., et al.. (2013). Costs of adalimumab versus infliximab as first-line biological therapy for luminal Crohn's disease. Journal of Crohn s and Colitis. 8(5). 375–383. 13 indexed citations

Everett, Simon & P. J. Hamlin. (2011). Evidence-based use of anti-TNFα therapy in Crohn's disease; where are we in 2011?. Frontline Gastroenterology. 2(3). 144–150. 4 indexed citations

Duff, Sarah, et al.. (2011). Infliximab and surgical treatment of complex anal Crohn’s disease. Colorectal Disease. 14(8). 972–976. 16 indexed citations

Hamlin, P. J., Lorraine Warren, & Simon Everett. (2011). Establishing a biologics service for patients with inflammatory bowel disease. Frontline Gastroenterology. 2(3). 133–139. 1 indexed citations

10.

Suares, N. C., et al.. (2011). Efficacy and tolerability of methotrexate therapy for refractory Crohn’s disease: a large single‐centre experience. Alimentary Pharmacology & Therapeutics. 35(2). 284–291. 16 indexed citations

11.

Sprakes, Michael, et al.. (2011). Adalimumab as second line anti-tumour necrosis factor alpha therapy for Crohn's disease: A single centre experience. Journal of Crohn s and Colitis. 5(4). 324–331. 20 indexed citations

12.

Hamlin, P. J., et al.. (2010). Chylous ascites: an unusual case. British Journal of Hospital Medicine. 71(3). 174–174. 1 indexed citations

13.

Hamlin, P. J., et al.. (2010). Systematic review: granulocyte/monocyte adsorptive apheresis for ulcerative colitis. Alimentary Pharmacology & Therapeutics. 32(11-12). 1297–1306. 33 indexed citations

14.

Sprakes, Michael, Alexander C. Ford, N. C. Suares, et al.. (2010). Costs of care for Crohn’s disease following the introduction of infliximab: a single‐centre UK experience. Alimentary Pharmacology & Therapeutics. 32(11-12). 1357–1363. 29 indexed citations

15.

Hicks, Lucy, Prashant Kant, H.‐U. SCHUSTER, et al.. (2008). Visceral Leishmaniasis presenting with intestinal failure: a case report and literature review. European Journal of Gastroenterology & Hepatology. 21(1). 117–122. 18 indexed citations

16.

Burgoyne, C H, Sarah Field, Andrew K. Brown, et al.. (2007). Abnormal T cell differentiation persists in patients with rheumatoid arthritis in clinical remission and predicts relapse. Annals of the Rheumatic Diseases. 67(6). 750–757. 37 indexed citations

17.

Ford, Alexander C., et al.. (2007). Mycophenolate mofetil therapy for refractory inflammatory bowel disease. Inflammatory Bowel Diseases. 13(12). 1488–1492. 27 indexed citations

18.

Ford, Alexander C., A.G. Chalmers, & P. J. Hamlin. (2005). Image of the Month. Gastroenterology. 129(3). 785–785. 1 indexed citations

19.

Leek, J.P., et al.. (1997). Assignment of the Rab13 gene (RAB13) to human chromosome band 12q13 by in situ hybridization. Cytogenetic and Genome Research. 79(3-4). 210–211. 1 indexed citations

20.

Leek, J.P., P. J. Hamlin, Sandra Bell, & Nicholas Lench. (1997). Assignment of the STAT6 gene (STAT6) to human chromosome band 12q13 by in situ hybridization. Cytogenetic and Genome Research. 79(3-4). 208–209. 12 indexed citations

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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