Lee Er

2.2k total citations · 1 hit paper
56 papers, 1.3k citations indexed

About

Lee Er is a scholar working on Nephrology, Surgery and Emergency Medical Services. According to data from OpenAlex, Lee Er has authored 56 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Nephrology, 8 papers in Surgery and 6 papers in Emergency Medical Services. Recurrent topics in Lee Er's work include Dialysis and Renal Disease Management (18 papers), Chronic Kidney Disease and Diabetes (13 papers) and Renal Diseases and Glomerulopathies (7 papers). Lee Er is often cited by papers focused on Dialysis and Renal Disease Management (18 papers), Chronic Kidney Disease and Diabetes (13 papers) and Renal Diseases and Glomerulopathies (7 papers). Lee Er collaborates with scholars based in Canada, United Kingdom and United States. Lee Er's co-authors include Adeera Levin, Ognjenka Djurdjev, Monica Beaulieu, Sean J. Barbour, Anna S. Levin, Mhairi K. Sigrist, Hong Zhang, Zhihong Liu, John Feehally and Yusuke Suzuki and has published in prestigious journals such as Kidney International, Journal of the American Society of Nephrology and American Journal of Kidney Diseases.

In The Last Decade

Lee Er

50 papers receiving 1.3k citations

Hit 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.

Evaluating a New International Risk-Prediction Tool in IgA Nephropathy

2019 281 citations Sean J. Barbour, Rosanna Coppo et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Lee Er Canada	18	860	225	168	154	135	56	1.3k
Charles R. Swanepoel South Africa	21	1.0k 1.2×	118 0.5×	186 1.1×	81 0.5×	95 0.7×	62	1.6k
Sanjeev Gulati India	29	1.0k 1.2×	252 1.1×	316 1.9×	195 1.3×	201 1.5×	108	1.9k
Abhijat Kitchlu Canada	22	837 1.0×	155 0.7×	348 2.1×	193 1.3×	143 1.1×	71	1.7k
É. Alamartine France	26	1.0k 1.2×	209 0.9×	352 2.1×	136 0.9×	139 1.0×	85	2.0k
Young Eun Kwon South Korea	19	458 0.5×	108 0.5×	188 1.1×	99 0.6×	185 1.4×	65	1.1k
Naoki Kimata Japan	22	1.3k 1.5×	137 0.6×	379 2.3×	203 1.3×	180 1.3×	56	2.1k
Vinod Bansal United States	19	401 0.5×	74 0.3×	150 0.9×	183 1.2×	96 0.7×	72	1.1k
Ángel L.M. de Francisco Spain	25	910 1.1×	129 0.6×	417 2.5×	215 1.4×	83 0.6×	117	1.9k
Rachel Middleton United Kingdom	22	1.0k 1.2×	99 0.4×	326 1.9×	381 2.5×	114 0.8×	47	1.9k
Retha Steenkamp United Kingdom	22	829 1.0×	64 0.3×	192 1.1×	145 0.9×	41 0.3×	78	1.3k

Countries citing papers authored by Lee Er

Since Specialization

Citations

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

Fields of papers citing papers by Lee Er

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Lee Er

This figure shows the co-authorship network connecting the top 25 collaborators of Lee Er. A scholar is included among the top collaborators of Lee Er 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 Lee Er. Lee Er 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

Naik, Hiten, Lee Er, Hind Sbihi, et al.. (2025). Health-related adverse work outcomes associated with post COVID-19 condition: a cross-sectional study. BMJ Public Health. 3(1). e001801–e001801. 1 indexed citations

Barbour, Sean J., Rosanna Coppo, Jonathan Barratt, et al.. (2025). Using the International IgA Nephropathy Prediction Tool to Enrich Clinical Trial Cohorts. Kidney International Reports. 10(7). 1283–1287.

Atiquzzaman, Mohammad, Lee Er, Ognjenka Djurdjev, et al.. (2025). COVID-19 infection and the progression of kidney disease in British Columbia, Canada. Nephrology Dialysis Transplantation. 40(9). 1717–1726. 1 indexed citations

Yau, Kevin, Lee Er, Mohammad Atiquzzaman, et al.. (2024). Humoral Response Following 3 Doses of mRNA COVID-19 Vaccines in Patients With Non-Dialysis-Dependent CKD: An Observational Study. Canadian Journal of Kidney Health and Disease. 11. 1035179327–1035179327.

Zhang, Yuemiao, Ling Guo, Zi Wang, et al.. (2020). External Validation of International Risk-Prediction Models of IgA Nephropathy in an Asian-Caucasian Cohort. Kidney International Reports. 5(10). 1753–1763. 27 indexed citations

Andrade, Jason G., Nathaniel M. Hawkins, Christopher B. Fordyce, et al.. (2018). Variability in Non–Vitamin K Antagonist Oral Anticoagulants Dose Adjustment in Atrial Fibrillation Patients With Renal Dysfunction: The Influence of Renal Function Estimation Formulae. Canadian Journal of Cardiology. 34(8). 1010–1018. 26 indexed citations

Vuurmans, Tycho, Lee Er, Alexander Sirker, et al.. (2017). Long-term patient and kidney survival after coronary artery bypass grafting, percutaneous coronary intervention, or medical therapy for patients with chronic kidney disease. Coronary Artery Disease. 29(1). 8–16. 8 indexed citations

Er, Lee, Helen Chiu, Penny Hill, et al.. (2016). Evaluation of A 12-Month Pilot of Long-Term and Temporary Assisted Peritoneal Dialysis. Peritoneal Dialysis International. 37(3). 307–313. 36 indexed citations

Er, Lee, et al.. (2012). The effect of a multidisciplinary care clinic on the outcomes in pediatric chronic kidney disease. Pediatric Nephrology. 27(10). 1921–1927. 38 indexed citations

10.

Dionne, Janis M., et al.. (2012). Pharmaceutical cost distribution in childhood chronic kidney disease. Pediatric Nephrology. 27(9). 1531–1539. 3 indexed citations

11.

Bennett, Michael, et al.. (2011). Urinary NGAL levels before and after coronary angiography: a complex story. Nephrology Dialysis Transplantation. 26(10). 3207–3211. 4 indexed citations

12.

Levin, Adeera, et al.. (2011). Incident isolated 1,25(OH)2D3 deficiency is more common than 25(OH)D deficiency in CKD. Journal of Nephrology. 25(2). 204–210. 16 indexed citations

13.

Barbour, Sean J., Lee Er, Ognjenka Djurdjev, Mohammad A. Karim, & Anna S. Levin. (2010). Differences in progression of CKD and mortality amongst Caucasian, Oriental Asian and South Asian CKD patients. Nephrology Dialysis Transplantation. 25(11). 3663–3672. 71 indexed citations

14.

Copland, Michael A., et al.. (2009). Implementing a home haemodialysis programme without adversely affecting a peritoneal dialysis programme. Nephrology Dialysis Transplantation. 24(8). 2546–2550. 9 indexed citations

15.

Barbour, Sean J., et al.. (2008). The prevalence of hematologic and metabolic abnormalities during chronic kidney disease stages in different ethnic groups. Kidney International. 74(1). 108–114. 12 indexed citations

16.

Barraclough, Katherine A., et al.. (2008). Coronary artery calcification scores in patients with chronic kidney disease prior to dialysis: reliability as a trial outcome measure. Nephrology Dialysis Transplantation. 23(10). 3199–3205. 12 indexed citations

17.

Andrade, Jason G., Lee Er, Andrew Ignaszewski, & Adeera Levin. (2008). Exploration of Association of 1,25-OH2D3 with Augmentation Index, a Composite Measure of Arterial Stiffness. Clinical Journal of the American Society of Nephrology. 3(6). 1800–1806. 42 indexed citations

18.

Levin, Adeera, Ognjenka Djurdjev, Monica Beaulieu, & Lee Er. (2008). Variability and Risk Factors for Kidney Disease Progression and Death Following Attainment of Stage 4 CKD in a Referred Cohort. American Journal of Kidney Diseases. 52(4). 661–671. 198 indexed citations

19.

Er, Lee, et al.. (1999). Clinical Analysis of Surgical Geriatric Patients over 65 Years of Age.. Journal of the Korean Surgical Society. 56(2). 285–293. 1 indexed citations

20.

Er, Lee, et al.. (1972). The role of distal gastrectomy, with and without vagotomy, in the control of cephalic secretion and peptic ulcer disease.. PubMed. 71(1). 110–7. 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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