Sidney Klajner

824 total citations
30 papers, 463 citations indexed

About

Sidney Klajner is a scholar working on Surgery, Economics and Econometrics and General Health Professions. According to data from OpenAlex, Sidney Klajner has authored 30 papers receiving a total of 463 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 7 papers in Economics and Econometrics and 6 papers in General Health Professions. Recurrent topics in Sidney Klajner's work include Health Systems, Economic Evaluations, Quality of Life (6 papers), Pelvic floor disorders treatments (5 papers) and Healthcare cost, quality, practices (4 papers). Sidney Klajner is often cited by papers focused on Health Systems, Economic Evaluations, Quality of Life (6 papers), Pelvic floor disorders treatments (5 papers) and Healthcare cost, quality, practices (4 papers). Sidney Klajner collaborates with scholars based in Brazil, United States and Sweden. Sidney Klajner's co-authors include Carlos Eduardo Malzoni, Sérgio Santoro, Marco Aurélio Santo, Manoel Carlos Prieto Velhote, Sérgio Eduardo Alonso Araújo, Vanessa Teich, Durval Damiani, Fábio Guilherme Campos, Roberto Ferreira Artoni and João Gilberto Maksoud and has published in prestigious journals such as SHILAP Revista de lepidopterología, Annals of Surgery and Social Science & Medicine.

In The Last Decade

Sidney Klajner

27 papers receiving 441 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sidney Klajner Brazil 10 294 145 63 62 45 30 463
Azam Majidi Iran 10 55 0.2× 24 0.2× 42 0.7× 82 1.3× 40 0.9× 15 402
Meghan Garstka United States 12 198 0.7× 75 0.5× 20 0.3× 11 0.2× 42 0.9× 22 348
Christopher DuCoin United States 14 504 1.7× 63 0.4× 174 2.8× 55 0.9× 31 0.7× 102 670
Rebecca Pemberton United Kingdom 7 133 0.5× 37 0.3× 28 0.4× 14 0.2× 42 0.9× 9 411
Nadia Oubaya France 13 71 0.2× 82 0.6× 43 0.7× 44 0.7× 20 0.4× 37 374
Shiva G. Sajjan United States 14 178 0.6× 172 1.2× 123 2.0× 36 0.6× 38 0.8× 23 469
Qiuping Zhou United States 13 40 0.1× 27 0.2× 57 0.9× 151 2.4× 63 1.4× 27 497
Ashok Handa United Kingdom 7 132 0.4× 75 0.5× 63 1.0× 35 0.6× 30 0.7× 13 454
Thiago Ferreira de Souza Brazil 14 407 1.4× 143 1.0× 93 1.5× 18 0.3× 41 0.9× 42 616
Louise Hansen Denmark 11 188 0.6× 38 0.3× 11 0.2× 79 1.3× 33 0.7× 21 427

Countries citing papers authored by Sidney Klajner

Since Specialization
Citations

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

Fields of papers citing papers by Sidney Klajner

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sidney Klajner

This figure shows the co-authorship network connecting the top 25 collaborators of Sidney Klajner. A scholar is included among the top collaborators of Sidney Klajner 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 Sidney Klajner. Sidney Klajner 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.
Bernardez‐Pereira, Sabrina, Guilherme Schettino, Alexandre R. Marra, et al.. (2025). Cost-effectiveness analysis of implementing a field hospital in a soccer stadium during a pandemic. Frontiers in Public Health. 13. 1513709–1513709. 1 indexed citations
2.
Bernardez‐Pereira, Sabrina, Vivian Lin, Cláudia Regina Laselva, et al.. (2024). Prevalence, predictors, and patient-reported outcomes of long COVID in hospitalized and non-hospitalized patients from the city of São Paulo, Brazil. Frontiers in Public Health. 11. 1302669–1302669. 4 indexed citations
3.
Colombo, Giancarlo, Otávio Berwanger, Vanessa Teich, et al.. (2023). Impact of a quality programme on overindication of surgeries for endometriosis and cholecystectomies. BMJ Open Quality. 12(4). e002178–e002178. 1 indexed citations
4.
Rangel, Érika Bevilaqua, André Luíz Teles e Silva, Stephany Beyerstedt, et al.. (2023). Scientists of Tomorrow/ Cientistas do Amanhã : a project to inspire, stimulate scientific thinking, and introduce scientific methodology for young students. Einstein (São Paulo). 21. eAE0622–eAE0622.
5.
6.
Barros, Luísa Leite, et al.. (2021). Peritoneal <b><i>Chlamydia trachomatis</i></b> Infection as a Cause of Ascites: A Diagnosis Not to Be Missed. SHILAP Revista de lepidopterología. 15(3). 898–903.
7.
Ramos, Pedro, Carl Savage, Johan Thor, et al.. (2021). It takes two to dance the VBHC tango: A multiple case study of the adoption of value-based strategies in Sweden and Brazil. Social Science & Medicine. 282. 114145–114145. 17 indexed citations
8.
Teich, Vanessa, Sidney Klajner, Anna Carolina Batista Dantas, et al.. (2020). Epidemiologic and clinical features of patients with COVID-19 in Brazil. Einstein (São Paulo). 18. eAO6022–eAO6022. 51 indexed citations
9.
Araújo, Sérgio Eduardo Alonso, et al.. (2020). Impact of COVID-19 pandemic on care of oncological patients: experience of a cancer center in a Latin American pandemic epicenter. Einstein (São Paulo). 19. eAO6282–eAO6282. 40 indexed citations
10.
Makdisse, Márcia, et al.. (2020). What Do Doctors Think About Value-Based Healthcare? A Survey of Practicing Physicians in a Private Healthcare Provider in Brazil. Value in Health Regional Issues. 23. 25–29. 9 indexed citations
11.
Makdisse, Márcia, et al.. (2019). PNS42 A SURVEY OF PRACTICING PHYSICIANS ON VALUE-BASED HEALTH CARE IN A PRIVATE HEALTH SYSTEM IN BRAZIL. Value in Health Regional Issues. 19. S70–S70. 1 indexed citations
12.
Makdisse, Márcia, Marcelo Katz, Pedro Ramos, et al.. (2018). What Is a Value Management Office? An Implementation Experience in Latin America. Value in Health Regional Issues. 17. 71–73. 9 indexed citations
13.
Araújo, Sérgio Eduardo Alonso, et al.. (2017). INTERESFINCTERIAL LIGATION OF FISTULA TRACT (LIFT) FOR PATIENTS WITH ANAL FISTULAS: A BRAZILIAN BI-INSTITUTIONAL EXPERIENCE. ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo). 30(4). 235–238. 9 indexed citations
14.
Araújo, Sérgio Eduardo Alonso, et al.. (2016). Laparo-endoscopic Transanal Total Mesorectal Excision (TATME): evidence of a novel technique. Minimally Invasive Therapy & Allied Technologies. 25(5). 278–287. 3 indexed citations
15.
Klajner, Sidney, et al.. (2015). Appendiceal Nodules in the Setting of Endometriosis Can Be Carcinoid Tumors. JSLS Journal of the Society of Laparoscopic & Robotic Surgeons. 19(3). e2015.00028–e2015.00028. 12 indexed citations
16.
Araújo, Sérgio Eduardo Alonso, et al.. (2014). Left colectomy with intracoporeal anastomosis: technical aspects. Einstein (São Paulo). 12(3). 386–388. 2 indexed citations
17.
Podgaec, Sérgio, Manoel Orlando Gonçalves, Sidney Klajner, & Maurício Simões Abrão. (2008). Epigastric pain relating to menses can be a symptom of bowel endometriosis. Sao Paulo Medical Journal. 126(4). 242–244. 10 indexed citations
18.
Santoro, Sérgio, Carlos Eduardo Malzoni, Sidney Klajner, et al.. (2007). Enterohormonal Changes After Digestive Adaptation: Five-Year Results of a Surgical Proposal to Treat Obesity and Associated Diseases. Obesity Surgery. 18(1). 17–26. 58 indexed citations
19.
Santoro, Sérgio, Carlos Eduardo Malzoni, Manoel Carlos Prieto Velhote, et al.. (2006). Digestive Adaptation with Intestinal Reserve: A Neuroendocrine-Based Operation for Morbid Obesity. Obesity Surgery. 16(10). 1371–1379. 57 indexed citations
20.
Velhote, Manoel Carlos Prieto, et al.. (1998). Apendicectomia videolaparoscopica com auxilio de grampeador linear cortante. 53(5). 230–233. 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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