Joan Ko

1.7k total citations · 1 hit paper
29 papers, 1.2k citations indexed

About

Joan Ko is a scholar working on Urology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Joan Ko has authored 29 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Urology, 8 papers in Surgery and 8 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Joan Ko's work include Urological Disorders and Treatments (11 papers), Pediatric Urology and Nephrology Studies (6 papers) and Ureteral procedures and complications (5 papers). Joan Ko is often cited by papers focused on Urological Disorders and Treatments (11 papers), Pediatric Urology and Nephrology Studies (6 papers) and Ureteral procedures and complications (5 papers). Joan Ko collaborates with scholars based in United States, Canada and Belgium. Joan Ko's co-authors include Ruslan Medzhitov, Thiérry Heidmann, Daniel B. Stetson, Brian R. Matlaga, Justin B. Ziemba, Wesley Ludwig, Gyusung Lee, Misop Han, Zhaoyong Feng and Brian M. Inouye and has published in prestigious journals such as Cell, Journal of Clinical Oncology and The Journal of Urology.

In The Last Decade

Joan Ko

25 papers receiving 1.2k citations

Hit Papers

Trex1 Prevents Cell-Intrinsic Initiation of Autoimmunity 2008 2026 2014 2020 2008 250 500 750
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. Trex1 Prevents Cell-Intrinsic Initiation of Autoimmunity
    2008 974 citations Daniel B. Stetson, Joan Ko et al. Cell profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Joan Ko United States 10 703 575 175 127 123 29 1.2k
Steffen Bank Denmark 20 328 0.5× 215 0.4× 206 1.2× 67 0.5× 208 1.7× 31 1.0k
Isabelle Fayt Belgium 18 340 0.5× 149 0.3× 51 0.3× 217 1.7× 34 0.3× 50 1.3k
Sylvia Hsu United States 18 228 0.3× 111 0.2× 223 1.3× 87 0.7× 153 1.2× 78 1.2k
Takuma Fujii Japan 25 180 0.3× 448 0.8× 50 0.3× 308 2.4× 17 0.1× 105 1.7k
Johannes Clausen Austria 16 433 0.6× 166 0.3× 42 0.2× 287 2.3× 225 1.8× 44 1.1k
Srdjan Pašić Serbia 14 869 1.2× 146 0.3× 152 0.9× 155 1.2× 135 1.1× 25 1.2k
Judy Splawski United States 17 847 1.2× 153 0.3× 264 1.5× 135 1.1× 49 0.4× 36 1.4k
Ramin Yaghobi Iran 18 255 0.4× 193 0.3× 30 0.2× 241 1.9× 176 1.4× 151 1.0k
Mette Christiansen Denmark 21 447 0.6× 482 0.8× 39 0.2× 124 1.0× 266 2.2× 54 1.3k
R. Botella Spain 18 271 0.4× 142 0.2× 104 0.6× 301 2.4× 37 0.3× 76 1.1k

Countries citing papers authored by Joan Ko

Since Specialization
Citations

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

Fields of papers citing papers by Joan Ko

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Joan Ko

This figure shows the co-authorship network connecting the top 25 collaborators of Joan Ko. A scholar is included among the top collaborators of Joan Ko 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 Joan Ko. Joan Ko 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.
Jelin, Angie C., Elizabeth Wohler, Renan Paulo Martin, et al.. (2023). De novo variants identified by trio whole exome sequencing of bladder exstrophy epispadias complex. American Journal of Medical Genetics Part A. 194(4). e63501–e63501. 1 indexed citations
2.
Cowan, Andrew J., et al.. (2022). Imaging characteristics predicting elevated detrusor pressures in patients with spina bifida. Journal of Pediatric Urology. 19(1). 65.e1–65.e7. 2 indexed citations
3.
Ko, Joan, Katherine Fischer, Amanda Berry, et al.. (2022). Impact of Race, Gender, and Socioeconomic Status on Symptom Severity at Time of Urologic Referral. Journal of Racial and Ethnic Health Disparities. 10(4). 1735–1744. 2 indexed citations
4.
Ahn, Jennifer, Hillary L. Copp, Jacob Davidson, et al.. (2021). A multicenter study of acute testicular torsion in the time of COVID-19. Journal of Pediatric Urology. 17(4). 478.e1–478.e6. 20 indexed citations
5.
Xu, Weichen, Joan Ko, Nicolás Fernández, et al.. (2020). Abdominoscrotal hydrocele: excision of sac may not be necessary. Journal of Pediatric Urology. 16(4). 494.e1–494.e5. 5 indexed citations
6.
O’Kelly, Fardod, Casey A. Seideman, Patricio C. Gargollo, et al.. (2020). A survey and panel discussion of the effects of the COVID-19 pandemic on paediatric urological productivity, guideline adherence and provider stress. Journal of Pediatric Urology. 16(4). 492.e1–492.e9. 9 indexed citations
7.
Boysen, William R., Ardavan Akhavan, Joan Ko, et al.. (2018). Prospective multicenter study on robot-assisted laparoscopic extravesical ureteral reimplantation (RALUR-EV): Outcomes and complications. Journal of Pediatric Urology. 14(3). 262.e1–262.e6. 45 indexed citations
8.
Ko, Joan, et al.. (2017). Cystectomy in the Pediatric Exstrophy Population: Indications and Outcomes. Urology. 116. 168–171. 7 indexed citations
9.
Srivastava, Arnav, et al.. (2017). Patient with antiphospholipid syndrome presenting with testicular torsion-like symptoms. Urology Case Reports. 15. 26–27. 6 indexed citations
10.
Ludwig, Wesley, Gyusung Lee, Justin B. Ziemba, Joan Ko, & Brian R. Matlaga. (2017). Evaluating the Ergonomics of Flexible Ureteroscopy. Journal of Endourology. 31(10). 1062–1066. 29 indexed citations
11.
Michaud, Jason, et al.. (2016). Use of muscle pedicle flaps for failed bladder neck closure in the exstrophy spectrum. Journal of Pediatric Urology. 12(5). 289.e1–289.e5. 6 indexed citations
12.
Inouye, Brian M., Joan Ko, Michael A. Gorin, et al.. (2014). Impact of nephrectomy on long-term renal function in non-syndromic children treated for unifocal Wilms tumor. Journal of Pediatric Urology. 10(4). 662–666. 15 indexed citations
13.
Inouye, Brian M., Ali Tourchi, Heather N. Di Carlo, et al.. (2014). Safety and efficacy of staged pelvic osteotomies in the modern treatment of cloacal exstrophy. Journal of Pediatric Urology. 10(6). 1244–1248. 12 indexed citations
14.
Gupta, Natasha, Joan Ko, Brian R. Matlaga, & Ming‐Hsien Wang. (2014). Ureteroscopy for Treatment of Upper Urinary Tract Stones in Children: Technical Considerations. Current Urology Reports. 15(5). 407–407. 8 indexed citations
15.
Ko, Joan, et al.. (2013). Adenocarcinoma of the Ileal Conduit in a Patient Born With Classic Bladder Exstrophy. Urology Case Reports. 1(1). 5–6. 2 indexed citations
16.
Ko, Joan, et al.. (2012). Patterns of care for renal surgery: Underutilization of nephron-sparing procedures. Canadian Urological Association Journal. 6(6). 1–7.
17.
18.
19.
Crispen, Paul L., et al.. (2011). Regional trends of renal mass management in the Southeast.. Journal of Clinical Oncology. 29(15_suppl). e16562–e16562.
20.
Stetson, Daniel B., Joan Ko, Thiérry Heidmann, & Ruslan Medzhitov. (2008). Trex1 Prevents Cell-Intrinsic Initiation of Autoimmunity. Cell. 134(4). 587–598. 974 indexed citations breakdown →

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 Steffen Bank Breakdown of academic impact, for papers by Isabelle Fayt Breakdown of academic impact, for papers by Sylvia Hsu Breakdown of academic impact, for papers by Takuma Fujii Breakdown of academic impact, for papers by Johannes Clausen Breakdown of academic impact, for papers by Srdjan Pašić Breakdown of academic impact, for papers by Judy Splawski Breakdown of academic impact, for papers by Ramin Yaghobi Breakdown of academic impact, for papers by Mette Christiansen Breakdown of academic impact, for papers by R. Botella
Rankless by CCL
2026