David Clas

1.7k total citations
27 papers, 1.3k citations indexed

About

David Clas is a scholar working on Surgery, Emergency Medicine and Neurology. According to data from OpenAlex, David Clas has authored 27 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Surgery, 18 papers in Emergency Medicine and 4 papers in Neurology. Recurrent topics in David Clas's work include Trauma and Emergency Care Studies (17 papers), Pelvic and Acetabular Injuries (6 papers) and Emergency and Acute Care Studies (6 papers). David Clas is often cited by papers focused on Trauma and Emergency Care Studies (17 papers), Pelvic and Acetabular Injuries (6 papers) and Emergency and Acute Care Studies (6 papers). David Clas collaborates with scholars based in Canada and United States. David Clas's co-authors include Éric Bergeron, Sebastien Ratte, André Lavoie, Lynne Moore, Matthew J. Martin, Gerald M. Fried, Jonathan L. Meakins, Jean‐Marie Bamvita, Jacques Lemaire and Jeffrey Barkun and has published in prestigious journals such as The American Journal of Surgery, Journal of Surgical Research and Surgical Clinics of North America.

In The Last Decade

David Clas

27 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
David Clas Canada 17 914 730 367 135 126 27 1.3k
Dale Oller United States 20 846 0.9× 709 1.0× 485 1.3× 141 1.0× 144 1.1× 32 1.5k
Ricard N. Townsend United States 19 747 0.8× 564 0.8× 297 0.8× 308 2.3× 105 0.8× 32 1.2k
Evert A. Eriksson United States 17 495 0.5× 365 0.5× 144 0.4× 299 2.2× 118 0.9× 57 990
David B. Hoyt United States 14 763 0.8× 900 1.2× 141 0.4× 114 0.8× 102 0.8× 15 1.4k
J Pillgram-Larsen Norway 18 542 0.6× 506 0.7× 209 0.6× 82 0.6× 54 0.4× 66 936
Gregory A. Timberlake United States 18 481 0.5× 239 0.3× 316 0.9× 108 0.8× 35 0.3× 49 843
George H. Rodman United States 15 444 0.5× 364 0.5× 240 0.7× 105 0.8× 32 0.3× 34 863
Morgan Schellenberg United States 14 499 0.5× 445 0.6× 149 0.4× 79 0.6× 39 0.3× 128 874
Scott B. Frame United States 17 858 0.9× 538 0.7× 439 1.2× 97 0.7× 100 0.8× 35 1.3k
Aaron Strumwasser United States 21 555 0.6× 522 0.7× 202 0.6× 58 0.4× 66 0.5× 74 1.1k

Countries citing papers authored by David Clas

Since Specialization
Citations

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

Fields of papers citing papers by David Clas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of David Clas

This figure shows the co-authorship network connecting the top 25 collaborators of David Clas. A scholar is included among the top collaborators of David Clas 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 David Clas. David Clas 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.
Bergeron, Éric, André Lavoie, Lynne Moore, et al.. (2007). Surgical Management of Blunt Thoracic and Abdominal Injuries in Quebec: A Limited Volume. The Journal of Trauma: Injury, Infection, and Critical Care. 62(6). 1421–1426. 8 indexed citations
2.
Bamvita, Jean‐Marie, Éric Bergeron, André Lavoie, Sebastien Ratte, & David Clas. (2007). The Impact of Premorbid Conditions on Temporal Pattern and Location of Adult Blunt Trauma Hospital Deaths. The Journal of Trauma: Injury, Infection, and Critical Care. 63(1). 135–141. 39 indexed citations
3.
Bergeron, Éric, Julien Clément, A Lavoie, et al.. (2006). A Simple Fall in the Elderly: Not So Simple. The Journal of Trauma: Injury, Infection, and Critical Care. 60(2). 268–273. 101 indexed citations
4.
Clas, David, et al.. (2006). Le scanner cérébral chez les adultes victimes de traumatismes crâniens mineurs : un arbre décisionnel. Annales de Chirurgie. 131(4). 250–255. 2 indexed citations
5.
Bergeron, Éric, André Lavoie, Lynne Moore, et al.. (2006). Is the Delay to Surgery for Isolated Hip Fracture Predictive of Outcome in Efficient Systems?. The Journal of Trauma: Injury, Infection, and Critical Care. 60(4). 753–757. 71 indexed citations
6.
Bergeron, Éric, André Lavoie, Lynne Moore, David Clas, & Michel Rossignol. (2005). Comorbidity and age are both independent predictors of length of hospitalization in trauma patients.. PubMed. 48(5). 361–6. 50 indexed citations
7.
Bergeron, Éric, et al.. (2005). Penetrating thoracoabdominal injuries in Quebec: implications for surgical training and maintenance of competence.. PubMed. 48(4). 284–8. 11 indexed citations
8.
Bamvita, Jean‐Marie, André Lavoie, Lynne Moore, et al.. (2005). IS THE DELAY TO SURGERY FOR ISOLATED HIP FRACTURE PREDICTIVE OF OUTCOME IN EFFICIENT SYSTEMS?. The Journal of Trauma: Injury, Infection, and Critical Care. 59(2). 545–545. 16 indexed citations
9.
Bergeron, Éric, Michel Rossignol, Turner Osler, David Clas, & André Lavoie. (2004). Improving the TRISS Methodology by Restructuring Age Categories and Adding Comorbidities. The Journal of Trauma: Injury, Infection, and Critical Care. 56(4). 760–767. 79 indexed citations
10.
Lavoie, André, Sebastien Ratte, David Clas, et al.. (2004). Preinjury Warfarin Use Among Elderly Patients With Closed Head Injuries in a Trauma Center. The Journal of Trauma: Injury, Infection, and Critical Care. 56(4). 802–807. 132 indexed citations
11.
Bergeron, Éric, André Lavoie, David Clas, et al.. (2003). Elderly Trauma Patients with Rib Fractures Are at Greater Risk of Death and Pneumonia. The Journal of Trauma: Injury, Infection, and Critical Care. 54(3). 478–485. 293 indexed citations
12.
Bergeron, Éric, et al.. (2003). Implementing a Routine Screening Program in the Acute Care Setting for Mild Traumatic Brain Injury. European Journal of Trauma. 29(2). 85–91. 2 indexed citations
13.
Bergeron, Éric, David Clas, Sebastien Ratte, et al.. (2002). Impact of Deferred Treatment of Blunt Diaphragmatic Rupture: A 15-Year Experience in Six Trauma Centers in Quebec. The Journal of Trauma: Injury, Infection, and Critical Care. 52(4). 633–640. 39 indexed citations
14.
Clas, David, et al.. (1999). ROUTINE SCREENING FOR MILD TRAUMATIC BRAIN INJURY.. 47(3). 614–614. 1 indexed citations
15.
Cachecho, Riad, David Clas, Keith S. Gersin, & Gene A. Grindlinger. (1998). Evolution in the Management of the Complex Liver Injury at a Level I Trauma Center. PubMed. 45(1). 79–82. 25 indexed citations
16.
Rafaeloff, Ronit, David Clas, Yoichiro Kakugawa, et al.. (1996). Induction of Islet Cell Differentiation and New Islet Formation in the Hamster–Further Support for a Ductular Origin. Pancreas. 13(1). 38–46. 24 indexed citations
17.
Fried, Gerald M., Jeffrey Barkun, Harvey H. Sigman, et al.. (1994). Factors determining conversion to laparotomy in patients undergoing laparoscopic cholecystectomy. The American Journal of Surgery. 167(1). 35–41. 229 indexed citations
18.
Fried, Gerald M., David Clas, & Jonathan L. Meakins. (1994). Minimally Invasive Surgery in the Elderly Patient. Surgical Clinics of North America. 74(2). 375–387. 46 indexed citations
19.
Healey, Mark A., David Clas, William P. Duguid, & Lynn Rosenberg. (1990). Adverse effects of cyclosporine on islet growth and differentiation. Journal of Surgical Research. 48(6). 557–561. 4 indexed citations
20.
Clas, David, F Hould, Léonard Rosenthall, Artin Arzoumanian, & Gerald M. Fried. (1989). Nifedipine inhibits cholecystokinin-induced gallbladder contraction. Journal of Surgical Research. 46(5). 479–483. 17 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Dale Oller Breakdown of academic impact, for papers by Ricard N. Townsend Breakdown of academic impact, for papers by Evert A. Eriksson Breakdown of academic impact, for papers by David B. Hoyt Breakdown of academic impact, for papers by J Pillgram-Larsen Breakdown of academic impact, for papers by Gregory A. Timberlake Breakdown of academic impact, for papers by George H. Rodman Breakdown of academic impact, for papers by Morgan Schellenberg Breakdown of academic impact, for papers by Scott B. Frame Breakdown of academic impact, for papers by Aaron Strumwasser
Rankless by CCL
2026