U I. Chang

1.1k total citations
49 papers, 715 citations indexed

About

U I. Chang is a scholar working on Epidemiology, Surgery and Hepatology. According to data from OpenAlex, U I. Chang has authored 49 papers receiving a total of 715 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Epidemiology, 20 papers in Surgery and 17 papers in Hepatology. Recurrent topics in U I. Chang's work include Liver Disease Diagnosis and Treatment (12 papers), Urinary Tract Infections Management (8 papers) and Liver Disease and Transplantation (7 papers). U I. Chang is often cited by papers focused on Liver Disease Diagnosis and Treatment (12 papers), Urinary Tract Infections Management (8 papers) and Liver Disease and Transplantation (7 papers). U I. Chang collaborates with scholars based in South Korea and United States. U I. Chang's co-authors include Jin Mo Yang, Do Seon Song, Seung Kew Yoon, Si Hyun Bae, Jong Young Choi, Seong‐Heon Wie, Hee Yeon Kim, Myeong Jun Song, Ho Jong Chun and Hyung Wook Kim and has published in prestigious journals such as Gastroenterology, PLoS ONE and Cancer.

In The Last Decade

U I. Chang

48 papers receiving 697 citations

Peers

U I. Chang
Kazuhide Shimamatsu Japan
Nicola De Ruvo Italy
Yasuhiro Takikawa Japan
Órla Crosbie Ireland
A. Shaked United States
Ranjana Gondal India
Kyu Sung Rim South Korea
Spiros Delis Greece
Rosa E. Enriquez United States
Chiung-Yu Chen Taiwan
Kazuhide Shimamatsu Japan
U I. Chang
Citations per year, relative to U I. Chang U I. Chang (= 1×) peers Kazuhide Shimamatsu

Countries citing papers authored by U I. Chang

Since Specialization
Citations

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

Fields of papers citing papers by U I. Chang

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of U I. Chang

This figure shows the co-authorship network connecting the top 25 collaborators of U I. Chang. A scholar is included among the top collaborators of U I. 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 U I. Chang. U I. 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.
Nam, Heechul, Ji Won Han, Soon Kyu Lee, et al.. (2024). Switching from tenofovir disoproxil fumarate to tenofovir alafenamide in virologically suppressed patient with chronic hepatitis B. Journal of Gastroenterology and Hepatology. 39(8). 1673–1683. 1 indexed citations
2.
Yang, Keungmo, Hyun Yang, Chang Wook Kim, et al.. (2024). Effect of Biliary Drainage on the Prognosis of Patients with Hepatocellular Carcinoma and Bile Duct Invasion. Gut and Liver. 18(5). 877–887. 1 indexed citations
3.
Song, Do Seon, et al.. (2023). Change in skeletal muscle mass is associated with hepatic steatosis in nonalcoholic fatty liver disease. Scientific Reports. 13(1). 8 indexed citations
4.
Song, Do Seon, U I. Chang, Sung Goo Kang, Sang-Wook Song, & Jin Mo Yang. (2019). Noninvasive Serum Fibrosis Markers are Associated with Coronary Artery Calcification in Patients with Nonalcoholic Fatty Liver Disease. Gut and Liver. 13(6). 658–668. 34 indexed citations
5.
Seo, Yun Jee, et al.. (2016). Prosthetic knee joint infection due to <i>Listeria monocytogenes</i> bacteremia in a diabetic female. The Korean Journal of Internal Medicine. 31(3). 616–619. 5 indexed citations
6.
Kim, Yeonjae, Seong‐Heon Wie, U I. Chang, et al.. (2014). Comparison of the clinical characteristics of diabetic and non-diabetic women with community-acquired acute pyelonephritis: A multicenter study. Journal of Infection. 69(3). 244–251. 24 indexed citations
7.
Kim, Hee Yeon, Jong Young Choi, Myeong Jun Song, et al.. (2011). Adult Living Donor Liver Transplantation Using Hepatitis B Core Antibody-Positive Grafts in Korea, a Hepatitis B-endemic Region. Gut and Liver. 5(3). 363–366. 15 indexed citations
8.
Jung, Sung Hoon, Chang Nyol Paik, Kang‐Moon Lee, et al.. (2009). Risk Factors Predicting the Development of Complication after Foreign Body Ingestion. Clinical Endoscopy. 38(4). 199–204. 6 indexed citations
9.
Paik, Chang Nyol, et al.. (2008). A Case of Borrmann Typer 4 Cancer that was Suspected to be Eosinophiic Gastritis. Clinical Endoscopy. 37(6). 419–423. 1 indexed citations
10.
Lee, Seok-Ju, Woo-Chul Chung, Kang‐Moon Lee, et al.. (2007). A Case of Eosinophilic Gastroenteritis in a Patient with Traumatic Hypopituitarism. Clinical Endoscopy. 34(1). 51–55. 1 indexed citations
11.
Chang, U I., Hyung Wook Kim, Soo Young Kim, et al.. (2007). Clinical Features and Antimicrobial Resistance among Clinical Isolates of Women with Community-Acquired Acute Pyelonephritis in 2001-2006. Infection and Chemotherapy. 39(1). 9–16. 10 indexed citations
12.
Chang, U I., Jeong Won Jang, Si Hyun Bae, et al.. (2007). Evolution of viral load and changes of polymerase and precore/core promoter sequences in lamivudine‐resistant hepatitis B virus during adefovir therapy. Journal of Medical Virology. 79(7). 902–910. 3 indexed citations
13.
Chung, Woo-Chul, Kang‐Moon Lee, Bo‐In Lee, et al.. (2006). Endoscopic Removal of Bleeding Duodenal Lipoma Using a Detachable Snare. Clinical Endoscopy. 33(2). 100–104. 1 indexed citations
14.
Chung, Woo Chul, Seong Su Hwang, Hyun Min Cho, et al.. (2006). A Case of Superior Mesenteric Artery Syndrome Treated by Laparoscopic Surgery. Clinical Endoscopy. 32(3). 215–220. 1 indexed citations
15.
Jang, Jeong Won, Si Hyun Bae, Jong Young Choi, et al.. (2006). A combination therapy with transarterial chemo-lipiodolization and systemic chemo-infusion for large extensive hepatocellular carcinoma invading portal vein in comparison with conservative management. Cancer Chemotherapy and Pharmacology. 59(1). 9–15. 30 indexed citations
16.
Kim, Jin-Dong, Kang‐Moon Lee, Woo-Chul Chung, et al.. (2006). Acute pancreatitis and cholangitis caused by hemobilia from biliary papillomatosis. Gastrointestinal Endoscopy. 65(1). 177–180. 8 indexed citations
17.
Chung, Woo-Chul, Hyung-Min Chin, Kang‐Moon Lee, et al.. (2006). Intraductal Papillary Mucinous Neoplasm in a Patient with an Incomplete Pancreatic Divisum. Clinical Endoscopy. 33(3). 191–196. 1 indexed citations
18.
19.
Lee, Tae‐Kyu, Younghwan Kim, U I. Chang, et al.. (2003). The Diagnostic Value of Polymerase Chain Reaction in Intestinal Tuberculosis. Clinical Endoscopy. 26(2). 79–83. 2 indexed citations
20.
Park, Jung Tak, Jin-Il Kim, Sung‐Yong Kim, et al.. (2002). A Case of Acute Pancreatitis Caused by Biliary Ascariasis. Clinical Endoscopy. 24(3). 187–191. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Kazuhide Shimamatsu Breakdown of academic impact, for papers by Nicola De Ruvo Breakdown of academic impact, for papers by Yasuhiro Takikawa Breakdown of academic impact, for papers by Órla Crosbie Breakdown of academic impact, for papers by A. Shaked Breakdown of academic impact, for papers by Ranjana Gondal Breakdown of academic impact, for papers by Kyu Sung Rim Breakdown of academic impact, for papers by Spiros Delis Breakdown of academic impact, for papers by Rosa E. Enriquez Breakdown of academic impact, for papers by Chiung-Yu Chen
Rankless by CCL
2026