Simon Siu‐Man Sum

779 total citations
22 papers, 647 citations indexed

About

Simon Siu‐Man Sum is a scholar working on Epidemiology, Hepatology and Infectious Diseases. According to data from OpenAlex, Simon Siu‐Man Sum has authored 22 papers receiving a total of 647 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Epidemiology, 17 papers in Hepatology and 5 papers in Infectious Diseases. Recurrent topics in Simon Siu‐Man Sum's work include Hepatitis B Virus Studies (17 papers), Hepatitis C virus research (16 papers) and Liver Disease Diagnosis and Treatment (10 papers). Simon Siu‐Man Sum is often cited by papers focused on Hepatitis B Virus Studies (17 papers), Hepatitis C virus research (16 papers) and Liver Disease Diagnosis and Treatment (10 papers). Simon Siu‐Man Sum collaborates with scholars based in China, Hong Kong and Belgium. Simon Siu‐Man Sum's co-authors include Ching‐Lung Lai, Man‐Fung Yuen, Danny Ka‐Ho Wong, He‐Jun Yuan, Chee‐Kin Hui, Annie On‐On Chan, John Chi–Hang Yuen, Erwin Sablon, Jeff G. Hall and Benjamin Chun–Yu Wong and has published in prestigious journals such as Hepatology, Journal of Clinical Microbiology and Journal of Hepatology.

In The Last Decade

Simon Siu‐Man Sum

22 papers receiving 615 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Simon Siu‐Man Sum China 13 584 534 65 43 22 22 647
T Uzawa Japan 6 329 0.6× 225 0.4× 54 0.8× 41 1.0× 26 1.2× 9 456
Taotao Yan China 11 247 0.4× 190 0.4× 42 0.6× 36 0.8× 12 0.5× 31 298
Guangbi Yao China 10 941 1.6× 912 1.7× 125 1.9× 17 0.4× 12 0.5× 16 972
C Trépo France 11 221 0.4× 162 0.3× 123 1.9× 42 1.0× 13 0.6× 31 358
Roeland Zoutendijk Netherlands 11 597 1.0× 573 1.1× 72 1.1× 39 0.9× 14 0.6× 16 692
Gianfranca Stornaiuolo Italy 12 619 1.1× 564 1.1× 39 0.6× 51 1.2× 29 1.3× 23 695
Wen‐Ling Huang Taiwan 11 434 0.7× 388 0.7× 96 1.5× 29 0.7× 40 1.8× 15 581
Watcharasak Chotiyaputta Thailand 13 555 1.0× 546 1.0× 106 1.6× 22 0.5× 27 1.2× 30 623
Retno Handajani Indonesia 12 336 0.6× 319 0.6× 43 0.7× 21 0.5× 7 0.3× 48 438
Tuan Nguyen United States 9 516 0.9× 519 1.0× 120 1.8× 70 1.6× 16 0.7× 16 611

Countries citing papers authored by Simon Siu‐Man Sum

Since Specialization
Citations

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

Fields of papers citing papers by Simon Siu‐Man Sum

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Simon Siu‐Man Sum. 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 Simon Siu‐Man Sum. The network helps show where Simon Siu‐Man Sum may publish in the future.

Co-authorship network of co-authors of Simon Siu‐Man Sum

This figure shows the co-authorship network connecting the top 25 collaborators of Simon Siu‐Man Sum. A scholar is included among the top collaborators of Simon Siu‐Man Sum 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 Simon Siu‐Man Sum. Simon Siu‐Man Sum 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.
Cao, Joyce, et al.. (2020). Vitamin D2 and D3 Supplementation Effect on Serum 25(OH)D Levels: A Meta-Analysis. Current Developments in Nutrition. 4. nzaa067_009–nzaa067_009. 1 indexed citations
2.
Sum, Simon Siu‐Man, et al.. (2019). The Nutrient Density of USDA’s Sample Menu Measured by the Nutrition Rich Food (NRF) Index (OR14-02-19). Current Developments in Nutrition. 3. nzz038.OR14–2. 1 indexed citations
3.
4.
Sum, Simon Siu‐Man & Jane Ziegler. (2016). Lingzhi and Cordyceps. Nutrition in Clinical Practice. 31(5). 695–697. 4 indexed citations
5.
Sum, Simon Siu‐Man & Rebecca Brody. (2012). The Link Between Thiamine Supplementation and Treatment of Wernicke-Korsakoff Syndrome in Patients with Alcoholism. Topics in Clinical Nutrition. 27(4). 334–338. 3 indexed citations
6.
Yuen, Man‐Fung, et al.. (2005). Impact of precore and core promoter mutations on hepatic histology in patients with chronic hepatitis B. Alimentary Pharmacology & Therapeutics. 22(4). 301–307. 7 indexed citations
7.
Yuen, Man‐Fung, Yasuhito Tanaka, Irene Oi‐Lin Ng, et al.. (2005). Hepatic necroinflammation and fibrosis in patients with genotypes Ba and C, core‐promoter and precore mutations. Journal of Viral Hepatitis. 12(5). 513–518. 24 indexed citations
8.
Sum, Simon Siu‐Man, Danny Ka‐Ho Wong, John Chi–Hang Yuen, Ching‐Lung Lai, & Man‐Fung Yuen. (2005). Comparison of the COBAS TaqMan™ HBV test with the COBAS Amplicor monitor™ test for measurement of hepatitis B virus DNA in serum. Journal of Medical Virology. 77(4). 486–490. 11 indexed citations
9.
Yuen, Man‐Fung, Danny Ka‐Ho Wong, Simon Siu‐Man Sum, et al.. (2005). Effect of Lamivudine Therapy on the Serum Covalently Closed-Circular (ccc) DNA of Chronic Hepatitis B Infection. The American Journal of Gastroenterology. 100(5). 1099–1103. 35 indexed citations
10.
Yuen, Man‐Fung, Irene Oi‐Lin Ng, He‐Jun Yuan, et al.. (2004). Significance of HBV DNA Levels in Liver Histology of HBeAg and Anti-HBe Positive Patients with Chronic Hepatitis B. The American Journal of Gastroenterology. 99(10). 2032–2037. 49 indexed citations
11.
Yuen, Man‐Fung, Erwin Sablon, Yasuhito Tanaka, et al.. (2004). Epidemiological study of hepatitis B virus genotypes, core promoter and precore mutations of chronic hepatitis B infection in Hong Kong. Journal of Hepatology. 41(1). 119–125. 61 indexed citations
12.
Lim, Wonbong, et al.. (2004). 18-year follow-up study of a prospective randomized trial of hepatitis B vaccinations without booster doses in children. Clinical Gastroenterology and Hepatology. 2(10). 941–945. 79 indexed citations
13.
Wong, Danny Ka‐Ho, Man‐Fung Yuen, Eric Tse, et al.. (2004). Detection of Intrahepatic Hepatitis B Virus DNA and Correlation with Hepatic Necroinflammation and Fibrosis. Journal of Clinical Microbiology. 42(9). 3920–3924. 18 indexed citations
14.
Wong, Danny Ka‐Ho, Man‐Fung Yuen, He‐Jun Yuan, et al.. (2004). Quantitation of covalently closed circular hepatitis B virus DNA in chronic hepatitis B patients. Hepatology. 40(3). 727–737. 113 indexed citations
15.
Yuen, Man‐Fung, Danny Ka‐Ho Wong, He‐Jun Yuan, Simon Siu‐Man Sum, & Ching‐Lung Lai. (2004). HBsAg Seroclearance in Chinese Patients Receiving Lamivudine Therapy for Chronic Hepatitis B Virus Infection. Journal of Clinical Microbiology. 42(10). 4882–4884. 18 indexed citations
16.
Sum, Simon Siu‐Man, Danny Ka‐Ho Wong, Man‐Fung Yuen, et al.. (2004). Real-Time PCR Assay Using Molecular Beacon for Quantitation of Hepatitis B Virus DNA. Journal of Clinical Microbiology. 42(8). 3438–3440. 31 indexed citations
17.
Yuan, He‐Jun, Man‐Fung Yuen, Danny Ka‐Ho Wong, Simon Siu‐Man Sum, & Ching‐Lung Lai. (2004). Clinical Evaluation of the Digene Hybrid Capture II Test and the COBAS AMPLICOR Monitor Test for Determination of Hepatitis B Virus DNA Levels. Journal of Clinical Microbiology. 42(8). 3513–3517. 6 indexed citations
18.
Yuen, Man‐Fung, Takanobu Kato, Masashi Mizokami, et al.. (2003). Clinical outcome and virologic profiles of severe hepatitis B exacerbation due to YMDD mutations. Journal of Hepatology. 39(5). 850–855. 55 indexed citations
19.
Wong, Derek A., et al.. (2003). 1179 Hepatitis B virus genotypes B and C do not affect the anti-viral response to lamivudine. Hepatology. 38. 723–723. 5 indexed citations
20.
Yuen, Man‐Fung, Danny Ka‐Ho Wong, Erwin Sablon, et al.. (2003). Hepatitis B Virus Genotypes B and C Do Not Affect the Antiviral Response to Lamivudine. Antiviral Therapy. 8(6). 531–534. 74 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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