G. Lehman

2.0k total citations · 1 hit paper
25 papers, 1.5k citations indexed

About

G. Lehman is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, G. Lehman has authored 25 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Oncology, 11 papers in Surgery and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in G. Lehman's work include Pancreatic and Hepatic Oncology Research (12 papers), Pancreatitis Pathology and Treatment (7 papers) and Gallbladder and Bile Duct Disorders (4 papers). G. Lehman is often cited by papers focused on Pancreatic and Hepatic Oncology Research (12 papers), Pancreatitis Pathology and Treatment (7 papers) and Gallbladder and Bile Duct Disorders (4 papers). G. Lehman collaborates with scholars based in United States and Germany. G. Lehman's co-authors include DK Rex, Arne W. Lehmann, Klaus Gottlieb, Stuart Sherman, Lois Bucksot, Frank G. Gress, J. M. MCGILL, Steven I. Sherman, John Kiel and R. Hawes and has published in prestigious journals such as Gastroenterology, American Journal of Roentgenology and Gastrointestinal Endoscopy.

In The Last Decade

G. Lehman

24 papers receiving 1.4k citations

Hit Papers

Colonoscopic miss rates of adenomas determined by back-to... 1997 2026 2006 2016 1997 250 500 750 1000
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.

  1. Colonoscopic miss rates of adenomas determined by back-to-back colonoscopies
    1997 1.2k citations DK Rex, G. Lehman et al. Gastroenterology profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
G. Lehman United States 10 1.3k 1.1k 530 392 86 25 1.5k
Yark Hazewinkel Netherlands 16 1.2k 0.9× 927 0.8× 383 0.7× 378 1.0× 140 1.6× 36 1.3k
S. Kudo Japan 5 575 0.4× 595 0.5× 365 0.7× 178 0.5× 45 0.5× 6 903
Eveline Rondagh Netherlands 13 778 0.6× 643 0.6× 304 0.6× 295 0.8× 33 0.4× 23 915
Etsuko Kogure Japan 4 552 0.4× 568 0.5× 275 0.5× 168 0.4× 30 0.3× 5 775
Lightdale Cj Japan 7 568 0.4× 927 0.8× 562 1.1× 138 0.4× 41 0.5× 10 1.1k
Eiji Hidaka Japan 15 566 0.4× 394 0.4× 502 0.9× 78 0.2× 125 1.5× 53 889
M. Sasako Japan 10 627 0.5× 1.4k 1.3× 745 1.4× 150 0.4× 40 0.5× 19 1.6k
Geetanjali A. Akerkar United States 6 640 0.5× 310 0.3× 223 0.4× 100 0.3× 182 2.1× 7 759
María López‐Cerón Spain 14 650 0.5× 413 0.4× 228 0.4× 220 0.6× 103 1.2× 28 852
Muhammad W. Shahid United States 12 479 0.4× 427 0.4× 383 0.7× 45 0.1× 80 0.9× 27 710

Countries citing papers authored by G. Lehman

Since Specialization
Citations

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

Fields of papers citing papers by G. Lehman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G. Lehman. 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 G. Lehman. The network helps show where G. Lehman may publish in the future.

Co-authorship network of co-authors of G. Lehman

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

All Works

20 of 20 papers shown
1.
Watkins, James L., Lee McHenry, Laura Lazzell–Pannell, et al.. (2009). Frequency of sphincter of Oddi dysfunction in patients with previously normal sphincter of Oddi manometry studies. Endoscopy. 42(5). 369–374. 15 indexed citations
2.
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Rex, DK, et al.. (1997). Colonoscopic miss rates of adenomas determined by back-to-back colonoscopies. Gastroenterology. 112(1). 24–28. 1159 indexed citations breakdown →
5.
Sherman, Stuart, Klaus Gottlieb, Matthias Korn, et al.. (1997). The role of microlithiasis in idiopathic acute pancreatitis. Gastrointestinal Endoscopy. 45(4). AB165–AB165. 1 indexed citations
6.
Gress, Frank G., et al.. (1997). Endoscopic ultrasound (EUS) guided celiac plexus block (CB) for management of pain due to chronic pancreatitis (CP): A large single center experience. Gastrointestinal Endoscopy. 45(4). AB173–AB173. 16 indexed citations
7.
Gress, Frank G., et al.. (1997). Endoscopic ultrasound (EUS) versus spiral computed tomography (SCT) for staging pancreatic, biliary and ampullary tumors: A prospective comparison. Gastrointestinal Endoscopy. 45(4). AB173–AB173. 9 indexed citations
8.
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Rex, DK, et al.. (1996). 5-year incidence of adenomas after negative colonoscopy in asymptomatic average-risk persons [see comment]. Gastroenterology. 111(5). 1178–1181. 109 indexed citations
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Gottlieb, Klaus, Scott K. Sherman, G. Lehman, et al.. (1996). Multicenter ERCP experience with mucin producing and cystic pancreatic tumors. Gastrointestinal Endoscopy. 43(4). 405–405. 5 indexed citations
12.
Gress, Frank G., Robert H. Hawes, Steven O. Ikenberry, et al.. (1996). A prospective evaluation of EUS guided fine needle aspiration (FNA) biopsy for diagnosing pancreatic masses (PM) with comparison to CT and ERCP cytology. Gastrointestinal Endoscopy. 43(4). 422–422. 9 indexed citations
13.
Sherman, Steven I., et al.. (1995). Experience with a Catheter-Based Ultrasound Probe in the Bile Duct and Pancreas. Endoscopy. 27(2). 178–184. 42 indexed citations
14.
Lehman, G., et al.. (1995). Endoscopic drainage of pancreatic pseudocysts in the setting of necrotizing pancreatitis: A multicenter analysis. Gastrointestinal Endoscopy. 41(4). 423–423. 7 indexed citations
15.
Ikenberry, Steven O., Syed Zaidi, Thomas J. Savides, et al.. (1995). A prospective randomized comparison of radial (Olympus UM-20) and linear array (pentax FG 32UA) scanning Echoendoscopes (EE) in staging Pancreatic Cancer (PCa). Gastrointestinal Endoscopy. 41(4). 304–304. 1 indexed citations
16.
Gress, Frank G., Thomas J. Savides, Steven O. Ikenberry, G. Lehman, & Robert H. Hawes. (1995). Endoscopic Ultrasound (EUS) guided fine needle aspiration (FNA): experience with linear array and radial scanning Echoendoscope (EE) techniques. Gastrointestinal Endoscopy. 41(4). 304–304. 2 indexed citations
17.
Savides, Thomas J., Simon Sherman, James A. Madura, et al.. (1995). Endoscopic ultrasound (EUS) staging correlates with survival in patients with pancreatic cancer (PCa). Gastrointestinal Endoscopy. 41(4). 423–423. 3 indexed citations
18.
Hawes, Robert H., G. Lehman, Rocco L. Brunelle, & R E Miller. (1984). Comparative efficacy of colon-cleansing methods: standard preparation vs. Colimmac lavage. American Journal of Roentgenology. 142(2). 309–310. 1 indexed citations
19.
Choux, M, et al.. (1978). Hydatid cyst of the fourth ventricle in a six-year-old child.. PubMed. 18. 273–5. 3 indexed citations
20.
Pellet, W, et al.. (1973). [Large tumor of the glomus jugulare: combined oto-neuro-surgical approach].. PubMed. 19(6). 567–79.

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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