J. N. Blackwell

1.4k total citations · 1 hit paper
20 papers, 1.1k citations indexed

About

J. N. Blackwell is a scholar working on Gastroenterology, Surgery and Speech and Hearing. According to data from OpenAlex, J. N. Blackwell has authored 20 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Gastroenterology, 12 papers in Surgery and 4 papers in Speech and Hearing. Recurrent topics in J. N. Blackwell's work include Gastroesophageal reflux and treatments (14 papers), Esophageal and GI Pathology (10 papers) and Eosinophilic Esophagitis (8 papers). J. N. Blackwell is often cited by papers focused on Gastroesophageal reflux and treatments (14 papers), Esophageal and GI Pathology (10 papers) and Eosinophilic Esophagitis (8 papers). J. N. Blackwell collaborates with scholars based in United Kingdom, United States and Denmark. J. N. Blackwell's co-authors include R C Heading, Donald O. Castell, Joseph L. Nelson, Joel E. Richter, Wallace C. Wu, June A. Castell, John de Caestecker, S. Holt, W. J. Hannan and A Pryde and has published in prestigious journals such as The Lancet, Gut and Clinical Science.

In The Last Decade

J. N. Blackwell

20 papers receiving 1.0k citations

Hit Papers

1 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.

Esophageal manometry in 95 healthy adult volunteers

1987 430 citations Joel E. Richter, Wallace C. Wu et al. Digestive Diseases and Sciences profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. N. Blackwell United Kingdom	12	921	813	294	108	107	20	1.1k
D J Ott United States	20	454 0.5×	720 0.9×	321 1.1×	54 0.5×	295 2.8×	50	1.0k
Charles S. Winans United States	13	649 0.7×	780 1.0×	281 1.0×	33 0.3×	180 1.7×	26	1.0k
J R Bennett United Kingdom	5	2.4k 2.6×	2.5k 3.1×	274 0.9×	73 0.7×	401 3.7×	5	2.8k
A. Del Genio Italy	25	902 1.0×	1.4k 1.7×	302 1.0×	37 0.3×	277 2.6×	60	1.5k
Oliver O. Koch Germany	23	608 0.7×	1.0k 1.2×	213 0.7×	19 0.2×	262 2.4×	53	1.3k
Rami Sweis United Kingdom	25	1.5k 1.6×	1.6k 2.0×	577 2.0×	14 0.1×	210 2.0×	77	1.8k
Arthur Lieber United States	12	80 0.1×	244 0.3×	45 0.2×	39 0.4×	98 0.9×	23	441
Charles Cock Australia	21	378 0.4×	721 0.9×	653 2.2×	36 0.3×	490 4.6×	93	1.2k
George H. Humphreys United States	13	90 0.1×	351 0.4×	22 0.1×	63 0.6×	175 1.6×	27	503
Skandalakis Je United States	15	130 0.1×	414 0.5×	11 0.0×	66 0.6×	210 2.0×	48	580

Countries citing papers authored by J. N. Blackwell

Since Specialization

Citations

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

Fields of papers citing papers by J. N. Blackwell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. N. Blackwell

This figure shows the co-authorship network connecting the top 25 collaborators of J. N. Blackwell. A scholar is included among the top collaborators of J. N. Blackwell 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 J. N. Blackwell. J. N. Blackwell 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

Blackwell, J. N.. (1994). Gastroenterology, Clinical Science and Practice. European Journal of Gastroenterology & Hepatology. 6(12). 1177–1177. 14 indexed citations

Johnston, Brian T., J. S. A. Collins, R. J. McFarland, J. N. Blackwell, & A. H. G. Love. (1993). A comparison of esophageal motility in response to bread swallows and water swallows.. PubMed. 88(3). 351–5. 24 indexed citations

Richter, Joel E., Wallace C. Wu, J. N. Blackwell, et al.. (1987). Esophageal manometry in 95 healthy adult volunteers. Digestive Diseases and Sciences. 32(6). 583–592. 430 indexed citations breakdown →

Caestecker, John de, J. N. Blackwell, A Pryde, & R C Heading. (1987). Daytime gastro-oesophageal reflux is important in oesophagitis.. Gut. 28(5). 519–526. 107 indexed citations

Ferguson, A, J. N. Blackwell, & R. St. C. Barnetson. (1987). Effects of Additional Dietary Gluten on the Small-Intestinal Mucosa of Volunteers and of Patients with Dermatitis Herpetiformis. Scandinavian Journal of Gastroenterology. 22(5). 543–549. 42 indexed citations

Caestecker, John de, et al.. (1986). Clinical value of radionuclide oesophageal transit measurement.. Gut. 27(6). 659–666. 35 indexed citations

Blackwell, J. N., Christine B. Dalton, & Donald O. Castell. (1986). Oral pirenzepine does not affect esophageal pressures in man. Digestive Diseases and Sciences. 31(3). 230–235. 13 indexed citations

Caestecker, John de, et al.. (1985). THE OESOPHAGUS AS A CAUSE OF RECURRENT CHEST PAIN: WHICH PATIENTS SHOULD BE INVESTIGATED AND WHICH TESTS SHOULD BE USED?. The Lancet. 326(8465). 1143–1146. 101 indexed citations

Blackwell, J. N. & Donald O. Castell. (1984). Oesophageal Motility: Recent Advances and Implications. Clinical Science. 67(2). 145–151. 8 indexed citations

10.

Gawkrodger, David J., J. N. Blackwell, H M Gilmour, et al.. (1984). Dermatitis herpetiformis: diagnosis, diet and demography.. Gut. 25(2). 151–157. 112 indexed citations

11.

Blackwell, J. N. & D. O. Castell. (1984). Oesophageal chest pain: a point of view.. Gut. 25(1). 1–6. 31 indexed citations

12.

Caestecker, John de, et al.. (1984). The Contribution of Radionuclide Transit Studies to the Diagnosis of Suspected Oesophageal Disorders — A Review of 150 Patients. Scottish Medical Journal. 29(3). 200–200. 2 indexed citations

13.

Barnetson, Ross StC., et al.. (1984). Sequential studies of gliadin antibodies in patients with dermatitis herpetiformis. Archives of Dermatological Research. 276(2). 74–77. 5 indexed citations

14.

Blackwell, J. N., et al.. (1983). Radionuclide transit studies in the detection of oesophageal dysmotility.. Gut. 24(5). 421–426. 80 indexed citations

15.

Blackwell, J. N. & Donald O. Castell. (1983). Motility Disorders of the Lower Esophagus. Digestive Diseases. 1(3). 157–168. 7 indexed citations

16.

Blackwell, J. N., et al.. (1982). A RADIONUCLIDE TECHNIQUE FOR ASSESSING OESOPHAGEAL FUNCTION. Nuclear Medicine Communications. 3(5). 291–296. 1 indexed citations

17.

Blackwell, J. N., et al.. (1982). A RADIONUCLIDE TECHNIQUE FOR ASSESSING OESOPHAGEAL FUNCTION. Nuclear Medicine Communications. 3(5). 291–296. 6 indexed citations

18.

Blackwell, J. N., et al.. (1981). Laparoscopy and radioisotope imaging in the investigation of suspected liver disease. Digestive Diseases and Sciences. 26(6). 507–512. 2 indexed citations

19.

Blackwell, J. N., S. Holt, & R C Heading. (1981). Effect of Nifedipine on Oesophageal Motility and Gastric Emptying. Digestion. 21(1). 50–56. 79 indexed citations

20.

Holt, S. & J. N. Blackwell. (1980). Dermatitis herpetiformis and diabetes mellitus. Postgraduate Medical Journal. 56(651). 15–17. 3 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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