Sam S. Chang

12.8k total citations · 3 hit papers
187 papers, 7.5k citations indexed

About

Sam S. Chang is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Urology. According to data from OpenAlex, Sam S. Chang has authored 187 papers receiving a total of 7.5k indexed citations (citations by other indexed papers that have themselves been cited), including 114 papers in Surgery, 81 papers in Pulmonary and Respiratory Medicine and 61 papers in Urology. Recurrent topics in Sam S. Chang's work include Bladder and Urothelial Cancer Treatments (95 papers), Urinary and Genital Oncology Studies (60 papers) and Urological Disorders and Treatments (49 papers). Sam S. Chang is often cited by papers focused on Bladder and Urothelial Cancer Treatments (95 papers), Urinary and Genital Oncology Studies (60 papers) and Urological Disorders and Treatments (49 papers). Sam S. Chang collaborates with scholars based in United States, Netherlands and Germany. Sam S. Chang's co-authors include Michael S. Cookson, Joseph A. Smith, Peter E. Clark, Daniel A. Barocas, Nancy Wells, S. Duke Herrell, Roxelyn G. Baumgartner, Mark D. Tyson, David F. Penson and C.J. Stimson and has published in prestigious journals such as Nature Communications, Journal of Clinical Oncology and PLoS ONE.

In The Last Decade

Sam S. Chang

184 papers receiving 7.3k citations

Hit Papers

Renal Mass and Localized ... 2021 2026 2022 2024 2021 2024 2024 100 200 300
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. Renal Mass and Localized Renal Cancer: Evaluation, Management, and Follow-Up: AUA Guideline: Part I
    2021 359 citations Peter E. Clark, Sam S. Chang et al. The Journal of Urology profile →
  2. Diagnosis and Treatment of Non-Muscle Invasive Bladder Cancer: AUA/SUO Guideline: 2024 Amendment
    2024 99 citations Sam S. Chang et al. The Journal of Urology profile →
  3. Treatment of Non-Metastatic Muscle-Invasive Bladder Cancer: AUA/ASCO/SUO Guideline (2017; Amended 2020, 2024)
    2024 51 citations Sam S. Chang et al. The Journal of Urology profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sam S. Chang United States 49 4.5k 3.1k 2.1k 1.2k 1.1k 187 7.5k
Matthew E. Nielsen United States 52 4.3k 1.0× 2.9k 1.0× 1.6k 0.8× 1.7k 1.5× 1.6k 1.5× 235 8.2k
Raj S. Pruthi United States 51 5.2k 1.2× 2.2k 0.7× 2.3k 1.1× 1.5k 1.2× 1.4k 1.3× 229 8.4k
Gary D. Steinberg United States 52 5.4k 1.2× 3.2k 1.0× 2.0k 1.0× 1.8k 1.5× 1.7k 1.6× 295 9.2k
Siamak Daneshmand United States 53 8.7k 1.9× 2.5k 0.8× 2.8k 1.4× 1.7k 1.4× 1.7k 1.6× 471 10.9k
S. Machele Donat United States 55 7.3k 1.6× 1.9k 0.6× 3.5k 1.7× 1.3k 1.0× 711 0.7× 175 8.8k
Jay D. Raman United States 51 6.7k 1.5× 3.9k 1.3× 1.8k 0.9× 1.2k 1.0× 1.8k 1.7× 356 10.0k
Eric Wallen United States 43 2.8k 0.6× 2.0k 0.6× 1.3k 0.6× 922 0.8× 1.2k 1.1× 179 5.6k
Ziya Kırkalı Türkiye 40 2.9k 0.7× 3.5k 1.2× 1.5k 0.7× 1.0k 0.9× 2.3k 2.1× 248 7.3k
David C. Miller United States 41 2.4k 0.5× 4.7k 1.5× 707 0.3× 1.3k 1.1× 2.2k 2.0× 181 6.8k
Armen Aprikian Canada 48 3.0k 0.7× 4.2k 1.4× 946 0.5× 2.0k 1.7× 2.2k 2.0× 279 8.7k

Countries citing papers authored by Sam S. Chang

Since Specialization
Citations

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

Fields of papers citing papers by Sam S. Chang

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sam S. Chang. 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 Sam S. Chang. The network helps show where Sam S. Chang may publish in the future.

Co-authorship network of co-authors of Sam S. Chang

This figure shows the co-authorship network connecting the top 25 collaborators of Sam S. Chang. A scholar is included among the top collaborators of Sam S. Chang 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 Sam S. Chang. Sam S. Chang 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.
Moses, Kelvin A., Jennifer Gordetsky, Sam S. Chang, et al.. (2025). Extensive necrosis as a prognostic indicator in metastatic RCC patients undergoing deferred cytoreductive nephrectomy after immunologic checkpoint inhibitor treatment.. Journal of Clinical Oncology. 43(5_suppl). 468–468.
2.
Lotan, Yair, Daniel A. Barocas, Sam S. Chang, et al.. (2023). Commentary on Novitas LCD. Bladder Cancer. 9(4). 305–312. 1 indexed citations
3.
4.
Tallman, Jacob E., Bashir Al Hussein Al Awamlh, Niels V. Johnsen, et al.. (2022). Implementation of a comprehensive prehabilitation program for patients undergoing radical cystectomy. Urologic Oncology Seminars and Original Investigations. 41(2). 108.e19–108.e27. 10 indexed citations
5.
Lee, Daniel J., Mark D. Tyson, & Sam S. Chang. (2017). Conduit Urinary Diversion. Urologic Clinics of North America. 45(1). 25–36. 12 indexed citations
6.
Sundaram, Karthik M., Sam S. Chang, David F. Penson, & Sandeep Arora. (2017). Therapeutic Ultrasound and Prostate Cancer. Seminars in Interventional Radiology. 34(2). 187–200. 17 indexed citations
7.
Gregg, Justin R., Johnson T. Wong, Daniel A. Barocas, et al.. (2016). Oncologic Outcomes after Anterior Exenteration for Muscle Invasive Bladder Cancer in Women. The Journal of Urology. 196(4). 1030–1035. 22 indexed citations
8.
Stratton, Kelly, Todd M. Morgan, Daniel A. Barocas, et al.. (2014). Statin use is associated with improved survival in patients undergoing surgery for renal cell carcinoma. Urologic Oncology Seminars and Original Investigations. 33(1). 21.e11–21.e17. 39 indexed citations
9.
Barocas, Daniel A. & Sam S. Chang. (2010). Penile Cancer: Clinical Presentation, Diagnosis, and Staging. Urologic Clinics of North America. 37(3). 343–352. 27 indexed citations
10.
Stratton, Kelly & Sam S. Chang. (2009). Locally advanced prostate cancer: the role of surgical management. British Journal of Urology. 104(4). 449–454. 17 indexed citations
11.
Stec, Andrew A., Kelly Stratton, Melissa R. Kaufman, et al.. (2009). Open renal biopsy: comorbidities and complications in a contemporary series. British Journal of Urology. 106(1). 102–106. 5 indexed citations
12.
Patel, Sanjay G., Michael S. Cookson, Daniel A. Barocas, et al.. (2009). Risk factors for urothelial carcinoma of the prostate in patients undergoing radical cystoprostatectomy for bladder cancer. British Journal of Urology. 104(7). 934–937. 8 indexed citations
13.
Clark, Peter E., William T. Lowrance, Jon A Rumohr, et al.. (2008). Comparison of American Joint Committee on Cancer Pathological Stage T2a Versus T2b Urothelial Carcinoma: Analysis of Patient Outcomes in Organ Confined Bladder Cancer. The Journal of Urology. 181(2). 540–546. 15 indexed citations
14.
Fowke, Jay H., Maciej S. Buchowski, L. B. Signorello, et al.. (2007). Association between prostate-specific antigen and leptin, adiponectin, HbA1c or C-peptide among African-American and Caucasian men. Prostate Cancer and Prostatic Diseases. 11(3). 264–269. 32 indexed citations
15.
Chang, Sam S. & Michael S. Cookson. (2006). Impact of positive surgical margins after radical prostatectomy. Urology. 68(2). 249–252. 38 indexed citations
16.
Lowrance, William T., Sam S. Chang, & S. Duke Herrell. (2006). Primary renal carcinoid tumor managed with laparoscopic partial nephrectomy. Urology. 67(3). 622.e19–622.e20. 2 indexed citations
17.
Webster, Todd M., S. Duke Herrell, Sam S. Chang, et al.. (2005). ROBOTIC ASSISTED LAPAROSCOPIC RADICAL PROSTATECTOMY VERSUS RETROPUBIC RADICAL PROSTATECTOMY: A PROSPECTIVE ASSESSMENT OF POSTOPERATIVE PAIN. The Journal of Urology. 174(3). 912–914. 118 indexed citations
18.
Chang, Sam S., David T. Duong, Nancy Wells, et al.. (2004). Predicting Blood Loss and Transfusion Requirements During Radical Prostatectomy: The Significant Negative Impact of Increasing Body Mass Index. The Journal of Urology. 171(5). 1861–1865. 72 indexed citations
19.
20.
Cookson, Michael S., Sam S. Chang, Nancy Wells, Dipen J. Parekh, & Joseph A. Smith. (2003). Complications of Radical Cystectomy For Nonmuscle Invasive Disease: Comparison With Muscle Invasive Disease. The Journal of Urology. 101–104. 5 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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