H A Shaffer

417 total citations
17 papers, 343 citations indexed

About

H A Shaffer is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, H A Shaffer has authored 17 papers receiving a total of 343 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Surgery, 8 papers in Pulmonary and Respiratory Medicine and 4 papers in Gastroenterology. Recurrent topics in H A Shaffer's work include Esophageal and GI Pathology (9 papers), Gastroesophageal reflux and treatments (3 papers) and Eosinophilic Esophagitis (3 papers). H A Shaffer is often cited by papers focused on Esophageal and GI Pathology (9 papers), Gastroesophageal reflux and treatments (3 papers) and Eosinophilic Esophagitis (3 papers). H A Shaffer collaborates with scholars based in United States. H A Shaffer's co-authors include Eduard E. de Lange, R. K. Mittal, J. Ren, Richard W. McCallum, Ravinder K. Mittal, Eugene F. Foley, Shyamal D. Peddada, Stephen J. Bickston, Paul Yeaton and Chris L. Sistrom and has published in prestigious journals such as Radiology, Journal of Applied Physiology and American Journal of Roentgenology.

In The Last Decade

H A Shaffer

16 papers receiving 322 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
H A Shaffer United States	8	289	142	124	84	52	17	343
Valerio Gentilino Italy	14	384 1.3×	129 0.9×	162 1.3×	54 0.6×	20 0.4×	33	439
Hironobu Mikami Japan	14	429 1.5×	218 1.5×	124 1.0×	23 0.3×	10 0.2×	34	490
A. S. Johnstone United Kingdom	5	367 1.3×	186 1.3×	125 1.0×	31 0.4×	17 0.3×	9	409
Pearson Fg Canada	11	201 0.7×	69 0.5×	170 1.4×	35 0.4×	5 0.1×	18	292
Allison Pr	5	363 1.3×	310 2.2×	59 0.5×	72 0.9×	4 0.1×	12	459
William E. Barnes United States	11	470 1.6×	418 2.9×	46 0.4×	93 1.1×	7 0.1×	17	513
Ricardo V. Cohen Brazil	8	221 0.8×	86 0.6×	92 0.7×	35 0.4×	2 0.0×	11	284
Masahito Aimi Japan	14	429 1.5×	258 1.8×	86 0.7×	34 0.4×	2 0.0×	41	505
B. Ure Germany	10	321 1.1×	46 0.3×	92 0.7×	4 0.0×	9 0.2×	16	370
Jorge A. Olmos Argentina	6	238 0.8×	219 1.5×	56 0.5×	25 0.3×	2 0.0×	26	303

Countries citing papers authored by H A Shaffer

Since Specialization

Citations

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

Fields of papers citing papers by H A Shaffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H A Shaffer. 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 H A Shaffer. The network helps show where H A Shaffer may publish in the future.

Co-authorship network of co-authors of H A Shaffer

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

All Works

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17 of 17 papers shown

Bickston, Stephen J., et al.. (2005). Terminal Ileal Stricture in Crohn's Disease: Treatment Using a Metallic Enteral Endoprosthesis. Diseases of the Colon & Rectum. 48(5). 1081–1085. 21 indexed citations

Shaffer, H A, et al.. (1996). Gastrointestinal case of the day. Toxic megacolon with underlying ulcerative colitis.. American Journal of Roentgenology. 167(1). 240–240. 3 indexed citations

Shaffer, H A, et al.. (1996). Gastrointestinal case of the day. Sarcoidosis with involvement of liver, spleen, abdominal and thoracic lymph nodes, and lungs.. American Journal of Roentgenology. 167(1). 241–241. 2 indexed citations

Shaffer, H A, et al.. (1996). Gastrointestinal case of the day. Eosinophilic gastroenteritis.. American Journal of Roentgenology. 167(1). 241–241. 1 indexed citations

Huynh, Phan T., Eduard E. de Lange, & H A Shaffer. (1995). Symptomatic webs of the upper esophagus: treatment with fluoroscopically guided balloon dilation.. Radiology. 196(3). 789–792. 6 indexed citations

Mittal, Ravinder K., et al.. (1995). Influence of breathing pattern on the esophagogastric junction pressure and esophageal transit. American Journal of Physiology-Gastrointestinal and Liver Physiology. 269(4). G577–G583. 44 indexed citations

Lange, Eduard E. de, et al.. (1995). Strictures after gastric surgery: treatment with fluoroscopically guided balloon dilatation.. American Journal of Roentgenology. 164(4). 895–899. 23 indexed citations

Lange, Eduard E. de, et al.. (1994). Esophagoenteric anastomotic leaks: treatment with fluoroscopically guided balloon dilatation.. American Journal of Roentgenology. 162(1). 51–54. 4 indexed citations

Sistrom, Chris L., et al.. (1993). Factors affecting the thickness of the cervical prevertebral soft tissues. Skeletal Radiology. 22(3). 167–171. 14 indexed citations

10.

Shaffer, H A. (1992). Esophageal perforation. A reassessment of the criteria for choosing medical or surgical therapy. Archives of Internal Medicine. 152(4). 757–761. 65 indexed citations

11.

Lange, Eduard E. de & H A Shaffer. (1991). Rectal strictures: treatment with fluoroscopically guided balloon dilation.. Radiology. 178(2). 475–479. 32 indexed citations

12.

Mittal, R. K., et al.. (1990). Modulation of feline esophageal contractions by bolus volume and outflow obstruction. American Journal of Physiology-Gastrointestinal and Liver Physiology. 258(2). G208–G215. 80 indexed citations

13.

Knight, Herbert T., W. Matthew Petroll, J. M. Adams, H A Shaffer, & Dudley F. Rochester. (1990). Videofluoroscopic assessment of muscle fiber shortening in the in situ canine diaphragm. Journal of Applied Physiology. 68(5). 2200–2207. 6 indexed citations

14.

Lange, Eduard E. de & H A Shaffer. (1988). Anastomotic strictures of the upper gastrointestinal tract: results of balloon dilation.. Radiology. 167(1). 45–50. 32 indexed citations

15.

Lange, Eduard E. de, H A Shaffer, T M Daniel, & Irving L. Kron. (1987). Esophageal anastomotic leaks: preliminary results of treatment with balloon dilation.. Radiology. 165(1). 45–47. 7 indexed citations

16.

Lange, Eduard E. de & H A Shaffer. (1985). Barium suspension formulation for use with the bubbly barium method.. Radiology. 154(3). 825–825. 2 indexed citations

17.

Pope, Thomas, et al.. (1982). Radiologic evaluation of the Blom-Singer prosthesis for vocal restoration after laryngectomy.. Radiology. 143(2). 559–560. 1 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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