Joan Ko

1.7k citations

29 papers · 1.2k indexed · 1 hit paper · h-index 10

Impact in

Immunology top 5%
- interferon and immune responses
- Immune Response and Inflammation
- Immune Cell Function and Interaction
Virology top 10%

Papers in ⓘ

Urology 12
- Urological Disorders and Treatments 11
- Urinary Bladder and Prostate Research 4
Surgery 8
- Bladder and Urothelial Cancer Treatments 3

Co-authors: Daniel B. Stetson (1 shared paper)Thiérry Heidmann (1 shared paper)Ruslan Medzhitov (1 shared paper)Brian R. Matlaga (2 shared papers)Gyusung Lee (1 shared paper)Justin B. Ziemba (1 shared paper)Wesley Ludwig (1 shared paper)Misop Han (2 shared papers)
Journals: Journal of Pediatric Urology (9 papers)Urology (2 papers)The Journal of Urology (2 papers)Journal of Endourology (1 paper)Cell (1 paper)
Partner nations: United States Canada Belgium

In The Last Decade

Joan Ko

25 papers receiving 1.2k citations

Hit Papers

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Trex1 Prevents Cell-Intrinsic Initiation of Autoimmunity 2008 · 974 citations

Peers

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-authors

The 25 scholars most cited alongside Joan Ko, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Joan Ko Line = papers co-authored together Joan Ko links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 29 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Trex1 Prevents Cell-Intrinsic Initiation of Autoimmunity Cell ·Daniel B. Stetson, Joan Ko, Thiérry Heidmann, Ruslan Medzhitov Hit paper breakdown →	2008	974
2	Prospective multicenter study on robot-assisted laparoscopic extravesical ureteral reimplantation (RALUR-EV): Outcomes and complications Journal of Pediatric Urology ·William R. Boysen, Ardavan Akhavan, Joan Ko, Jonathan S. Ellison, Thomas S. Lendvay, Jonathan Huang, Michael Garcia‐Roig, Andrew J. Kirsch, Chester J. Koh, Marion Schulte, Paul H. Noh, M. Francesca Monn, Benjamin Whittam, Trudy Kawal, Aseem R. Shukla, Arun K. Srinivasan, Mohan S. Gundeti	2018	45
3	Variability in Medicare Utilization and Payment Among Urologists Urology ·Joan Ko, Heather J. Chalfin, Bruce J. Trock, Zhaoyong Feng, Elizabeth B. Humphreys, Sungwoo Park, H. Ballentine Carter, Kevin D. Frick, Misop Han	2015	35
4	Evaluating the Ergonomics of Flexible Ureteroscopy Journal of Endourology ·Wesley Ludwig, Gyusung Lee, Justin B. Ziemba, Joan Ko, Brian R. Matlaga	2017	29
5	A multicenter study of acute testicular torsion in the time of COVID-19 Journal of Pediatric Urology ·Sarah A. Holzman, Jennifer Ahn, Zoë Baker, Kai‐wen Chuang, Hillary L. Copp, Jacob Davidson, Carol A. Davis-Dao, Emily Ewing, Joan Ko, Victoria Lee, Amanda Macaraeg, Lauren Nicassio, Michael Sadighian, Heidi A. Stephany, Renea Sturm, Kelly Swords, Peter Wang, Elias Wehbi, Antoine E. Khoury	2021	20
6	Effect of intra‐observer variation in prostate volume measurement on prostate‐specific antigen density calculations among prostate cancer active surveillance participants British Journal of Urology ·Joan Ko, Patricia Landis, H. Ballentine Carter, Alan W. Partin	2011	16
7	Impact of nephrectomy on long-term renal function in non-syndromic children treated for unifocal Wilms tumor Journal of Pediatric Urology ·Adam Kern, Brian M. Inouye, Joan Ko, Michael A. Gorin, Mohamad E. Allaf, Seth D. Goldstein, Heather DiCarlo, Bhavik Shah, Ming‐Hsien Wang	2014	15
8	Lymph node density predicts recurrence and death after inguinal lymph node dissection for penile cancer Investigative and Clinical Urology ·Mark W. Ball, Zeyad Schwen, Joan Ko, Alexa Meyer, George J. Netto, Arthur L. Burnett, Trinity J. Bivalacqua	2017	14
9	Safety and efficacy of staged pelvic osteotomies in the modern treatment of cloacal exstrophy Journal of Pediatric Urology ·Brian M. Inouye, Ali Tourchi, Heather N. Di Carlo, Ezekiel E. Young, Joyce Mhlanga, Joan Ko, Paul D. Sponseller, John P. Gearhart	2014	12
10	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 ·Fardod O’Kelly, Scott Sparks, Casey A. Seideman, Patricio C. Gargollo, Candace F. Granberg, Joan Ko, Neha Malhotra, Sarah L. Hecht, Kelly Swords, Courtney K. Rowe, B. Whittam, Anne‐Françoise Spinoit, Anne G. Dudley, Jonathan S. Ellison, David I. Chu, Jonathan C. Routh, Glenn M. Cannon, Paul Kokorowski, Martin A. Koyle, Mesrur Selçuk Sılay	2020	9
11	Ureteroscopy for Treatment of Upper Urinary Tract Stones in Children: Technical Considerations Current Urology Reports ·Natasha Gupta, Joan Ko, Brian R. Matlaga, Ming‐Hsien Wang	2014	8
12	Cystectomy in the Pediatric Exstrophy Population: Indications and Outcomes Urology ·Joan Ko, Kathy Lue, Daniel Friedlander, Timothy Baumgartner, Peter Stuhldreher, Heather DiCarlo, John P. Gearhart	2017	7
13	Patient with antiphospholipid syndrome presenting with testicular torsion-like symptoms Urology Case Reports ·Arnav Srivastava, Joan Ko, Joy Ogunsile, Alison R. Moliterno, William H. Westra, Alice Semerjian	2017	6
14	Use of muscle pedicle flaps for failed bladder neck closure in the exstrophy spectrum Journal of Pediatric Urology ·Jason Michaud, Joan Ko, Kathy Lue, Heather N. Di Carlo, Richard J. Redett, John P. Gearhart	2016	6
15	Call Schedule and Sleep Patterns of Urology Residents Following the 2011 ACGME Reforms Urology Practice ·Joan Ko, Nathaniel Readal, Mark W. Ball, Misop Han, Phillip M. Pierorazio	2015	6
16	Abdominoscrotal hydrocele: excision of sac may not be necessary Journal of Pediatric Urology ·Weichen Xu, Joan Ko, Nicolás Fernández, Martin A. Koyle, Douglas A. Canning, Eric A. Kurzrock	2020	5
17	New advances in the pathophysiologic and radiologic basis of the exstrophy spectrum Journal of Pediatric Urology ·Ali Tourchi, Brian M. Inouye, Heather N. Di Carlo, Ezekiel E. Young, Joan Ko, John P. Gearhart	2013	5
18	Patterns of care for renal surgery: Underutilization of nephron-sparing procedures Canadian Urological Association Journal ·Jessica Hammett, Joan Ko, Nora Byrd, Paul L. Crispen, Tracey L. Krupski	2013	3
19	Imaging characteristics predicting elevated detrusor pressures in patients with spina bifida Journal of Pediatric Urology ·Arthi Hannallah, Zoë Baker, Andrew J. Cowan, Thalia Bajakian, Evalynn Vasquez, Joan Ko	2022	2
20	Adenocarcinoma of the Ileal Conduit in a Patient Born With Classic Bladder Exstrophy Urology Case Reports ·Joan Ko, Heather N. Di Carlo, Angela D. Gupta, Ashley E. Ross, Frederic E. Eckhäuser, Trinity J. Bivalacqua	2013	2

About Joan Ko

Joan Ko is a scholar working on Urology, Surgery, Pulmonary and Respiratory Medicine, Pediatrics, Perinatology and Child Health and Rheumatology, having authored 29 papers that have together received 1.2k indexed citations. Recurring topics across this work include Urological Disorders and Treatments (11 papers), Pediatric Urology and Nephrology Studies (6 papers), Ureteral procedures and complications (5 papers), Urinary Bladder and Prostate Research (4 papers), Renal and related cancers (3 papers), Bladder and Urothelial Cancer Treatments (3 papers), Renal cell carcinoma treatment (3 papers) and Urologic and reproductive health conditions (3 papers). The work is most often cited by research in Immunology (703 citations), Virology (73 citations), Urology (88 citations), Rheumatology (175 citations) and Molecular Biology (575 citations). Joan Ko has collaborated with scholars based in United States, Canada and Belgium. Frequent co-authors include Daniel B. Stetson, Thiérry Heidmann, Ruslan Medzhitov, Brian R. Matlaga, Gyusung Lee, Justin B. Ziemba, Wesley Ludwig, Misop Han, Patricia Landis and Ming‐Hsien Wang. Their work appears in journals such as Journal of Pediatric Urology, Urology, The Journal of Urology, Journal of Endourology and Cell.

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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