R I Hallan

851 total citations
16 papers, 620 citations indexed

About

R I Hallan is a scholar working on Surgery, Rheumatology and Cellular and Molecular Neuroscience. According to data from OpenAlex, R I Hallan has authored 16 papers receiving a total of 620 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Surgery, 5 papers in Rheumatology and 2 papers in Cellular and Molecular Neuroscience. Recurrent topics in R I Hallan's work include Anorectal Disease Treatments and Outcomes (6 papers), Pelvic floor disorders treatments (5 papers) and Botulinum Toxin and Related Neurological Disorders (2 papers). R I Hallan is often cited by papers focused on Anorectal Disease Treatments and Outcomes (6 papers), Pelvic floor disorders treatments (5 papers) and Botulinum Toxin and Related Neurological Disorders (2 papers). R I Hallan collaborates with scholars based in United Kingdom and United States. R I Hallan's co-authors include N S Williams, David Waldron, N R Womack, T. H. Koeze, Eric Watkins, J. Melling, J. Morrison, M. A. Pilot, Norman S. Williams and Julian Roberts and has published in prestigious journals such as The Lancet, Gut and British journal of surgery.

In The Last Decade

R I Hallan

16 papers receiving 579 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R I Hallan United Kingdom	10	472	362	140	130	77	16	620
N R Womack United Kingdom	8	539 1.1×	501 1.4×	69 0.5×	143 1.1×	82 1.1×	8	676
Margarita Vallès Spain	10	137 0.3×	81 0.2×	24 0.2×	67 0.5×	153 2.0×	26	501
Sigrídur Th. Valtýsdóttir Sweden	13	214 0.5×	153 0.4×	33 0.2×	22 0.2×	9 0.1×	15	578
Funda Taşçıoğlu Türkiye	8	71 0.2×	71 0.2×	28 0.2×	19 0.1×	22 0.3×	13	310
Johnny Yi United States	12	202 0.4×	85 0.2×	41 0.3×	5 0.0×	28 0.4×	59	502
Michael E. Jones United States	7	160 0.3×	34 0.1×	34 0.2×	17 0.1×	13 0.2×	9	330
G. Vivian United Kingdom	12	54 0.1×	26 0.1×	41 0.3×	21 0.2×	132 1.7×	23	336
Osamu Soejima Japan	14	445 0.9×	88 0.2×	26 0.2×	10 0.1×	8 0.1×	30	642
Vinay Kalsi United Kingdom	14	115 0.2×	646 1.8×	19 0.1×	33 0.3×	270 3.5×	26	944
Ehab A. Elzayat Canada	16	124 0.3×	575 1.6×	21 0.1×	7 0.1×	56 0.7×	34	1.2k

Countries citing papers authored by R I Hallan

Since Specialization

Citations

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

Fields of papers citing papers by R I Hallan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R I Hallan. 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 R I Hallan. The network helps show where R I Hallan may publish in the future.

Co-authorship network of co-authors of R I Hallan

This figure shows the co-authorship network connecting the top 25 collaborators of R I Hallan. A scholar is included among the top collaborators of R I Hallan 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 R I Hallan. R I Hallan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

Hallan, R I, et al.. (2009). A rare cause of small bowel obstruction. British Journal of Hospital Medicine. 70(12). 720–720. 4 indexed citations

Zeki, Sebastian, S M Catnach, Alistair King, & R I Hallan. (2009). An obstructing mass in a young ulcerative colitis patient. World Journal of Gastroenterology. 15(7). 877–877. 3 indexed citations

Hallan, R I, et al.. (2002). The colonic J‐pouch in colo‐anal anastomosis. Colorectal Disease. 4(5). 304–312. 4 indexed citations

Roberts, Julian, et al.. (1992). Evidence from dynamic integrated proctography to redefine anismus. British journal of surgery. 79(11). 1213–1215. 37 indexed citations

Waldron, David, Dinesh Kumar, R I Hallan, D. L. Wingate, & N S Williams. (1990). Evidence for motor neuropathy and reduced filling of the rectum in chronic intractable constipation.. Gut. 31(11). 1284–1288. 29 indexed citations

Williams, Norman S., R I Hallan, T. H. Koeze, & Eric Watkins. (1990). Restoration of gastrointestinal continuity and continence after abdominoperineal excision of the rectum using an electrically stimulated neoanal sphincter. Diseases of the Colon & Rectum. 33(7). 561–565. 49 indexed citations

Hallan, R I, et al.. (1990). Construction of a neoanal sphincter by transposition of the gracilis muscle and prolonged neuromuscular stimulation for the treatment of faecal incontinence.. PubMed. 72(2). 108–13. 54 indexed citations

Hallan, R I, N S Williams, M. Hutton, et al.. (1990). Electrically stimulated sartorius neosphincter: Canine model of activation and skeletal muscle transformation. British journal of surgery. 77(2). 208–213. 45 indexed citations

Hallan, R I, et al.. (1989). Transforming skeletal muscle. BMJ. 298(6670). 389.2–389. 1 indexed citations

10.

Williams, N S, R I Hallan, T. H. Koeze, & Eric Watkins. (1989). Construction of a neorectum and neoanal sphincter following previous proctocolectomy. British journal of surgery. 76(11). 1191–1194. 61 indexed citations

11.

Waldron, David, Dinesh Kumar, R I Hallan, & N S Williams. (1989). Prolonged ambulant assessment of anorectal function in patients with prolapsing hemorrhoids. Diseases of the Colon & Rectum. 32(11). 968–974. 22 indexed citations

12.

Hallan, R I, et al.. (1989). Comparison of digital and manometric assessment of anal sphincter function. British journal of surgery. 76(9). 973–975. 95 indexed citations

13.

Williams, N S, et al.. (1989). Function after ileal pouch and stapled pouch-anal anastomosis for ulcerative colitis. British journal of surgery. 76(11). 1168–1171. 54 indexed citations

14.

Hallan, R I, J. Melling, N R Womack, et al.. (1988). TREATMENT OF ANISMUS IN INTRACTABLE CONSTIPATION WITH BOTULINUM A TOXIN. The Lancet. 332(8613). 714–717. 157 indexed citations

15.

Hallan, R I, et al.. (1988). Vasectomy: How Much is Enough?. British Journal of Urology. 62(4). 377–379. 3 indexed citations

16.

Hallan, R I, T M Loosemore, & R W Motson. (1986). Pre-operative prediction of exposure for operative cholangiography. British journal of surgery. 73(10). 782–782. 2 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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