Roger K.C. Ngan

3.1k total citations
43 papers, 2.1k citations indexed

About

Roger K.C. Ngan is a scholar working on Oncology, Otorhinolaryngology and Surgery. According to data from OpenAlex, Roger K.C. Ngan has authored 43 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Oncology, 18 papers in Otorhinolaryngology and 13 papers in Surgery. Recurrent topics in Roger K.C. Ngan's work include Head and Neck Cancer Studies (18 papers), Viral-associated cancers and disorders (7 papers) and Lung Cancer Treatments and Mutations (6 papers). Roger K.C. Ngan is often cited by papers focused on Head and Neck Cancer Studies (18 papers), Viral-associated cancers and disorders (7 papers) and Lung Cancer Treatments and Mutations (6 papers). Roger K.C. Ngan collaborates with scholars based in China, Hong Kong and Canada. Roger K.C. Ngan's co-authors include W.H. Lau, Harry Yiu, Stewart Y. Tung, Brian O’Sullivan, To‐Wai Leung, Stephen C.K. Law, Anne W.M. Lee, Wai Tong Ng, John K. C. Chan and Wah Cheuk and has published in prestigious journals such as Nature Communications, Journal of Clinical Oncology and Gastroenterology.

In The Last Decade

Roger K.C. Ngan

43 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Roger K.C. Ngan China 18 1.1k 945 826 491 377 43 2.1k
Harry Yiu China 13 716 0.7× 584 0.6× 554 0.7× 331 0.7× 350 0.9× 16 1.4k
James Jer‐Min Jian Taiwan 23 406 0.4× 778 0.8× 842 1.0× 475 1.0× 218 0.6× 32 1.9k
Jared Weiss United States 24 730 0.7× 1.1k 1.1× 630 0.8× 1.1k 2.2× 112 0.3× 104 2.2k
Rafael Martínez‐Monge Spain 27 281 0.3× 926 1.0× 919 1.1× 984 2.0× 174 0.5× 128 2.3k
Signe Friesland Sweden 24 766 0.7× 705 0.7× 1.0k 1.2× 2.0k 4.2× 162 0.4× 71 2.9k
Stephen L. Seagren United States 18 623 0.6× 1.4k 1.5× 559 0.7× 2.1k 4.3× 249 0.7× 44 2.8k
Caroline Even France 22 853 0.8× 1.8k 1.9× 692 0.8× 812 1.7× 115 0.3× 142 2.5k
H. J. Wanebo United States 16 142 0.1× 1.1k 1.1× 678 0.8× 938 1.9× 276 0.7× 33 1.9k
Yeon‐Sil Kim South Korea 22 507 0.5× 546 0.6× 454 0.5× 705 1.4× 140 0.4× 110 1.6k
József Erfán Hungary 5 1.4k 1.3× 1.5k 1.6× 769 0.9× 1.2k 2.4× 95 0.3× 6 2.6k

Countries citing papers authored by Roger K.C. Ngan

Since Specialization
Citations

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

Fields of papers citing papers by Roger K.C. Ngan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger K.C. Ngan. 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 Roger K.C. Ngan. The network helps show where Roger K.C. Ngan may publish in the future.

Co-authorship network of co-authors of Roger K.C. Ngan

This figure shows the co-authorship network connecting the top 25 collaborators of Roger K.C. Ngan. A scholar is included among the top collaborators of Roger K.C. Ngan 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 Roger K.C. Ngan. Roger K.C. Ngan 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.
Chan, Wing‐Lok, Huiqing Hou, Cheuk‐Wai Choi, et al.. (2025). Development and validation of ACTTOP: a prediction model for severe anticancer treatment toxicities in older patients with solid malignancy. Age and Ageing. 54(11). 1 indexed citations
2.
Kang, Wei, Vincent Ka Chun Yan, Yue Wei, et al.. (2024). Effectiveness and safety of continuous low-molecular-weight heparin versus switching to direct oral anticoagulants in cancer-associated venous thrombosis. Nature Communications. 15(1). 5657–5657. 3 indexed citations
3.
Ngan, Roger K.C.. (2023). First-line maintenance therapy with niraparib in advanced platinum-sensitive ovarian cancer: two ‘long responder’ case reports and review of the current literature. Journal of International Medical Research. 51(9). 3639255809–3639255809. 1 indexed citations
4.
Helali, Aya El, Charlene H. L. Wong, Cheuk‐Wai Choi, et al.. (2022). A comprehensive systematic review and network meta-analysis: the role of anti-angiogenic agents in advanced epithelial ovarian cancer. Scientific Reports. 12(1). 3803–3803. 9 indexed citations
5.
Leung, Kathy, Joseph T. Wu, Xiao‐Ou Shu, et al.. (2021). Using Risk Stratification to Optimize Mammography Screening in Chinese Women. JNCI Cancer Spectrum. 5(4). 2 indexed citations
6.
7.
Co, Michael, Roger K.C. Ngan, Oscar W.K. Mang, et al.. (2020). Long-term Survival Outcomes of ‘Low Risk’ Ductal Carcinoma in situ from a Territory-wide Cancer Registry. Clinical Oncology. 33(1). 40–45. 8 indexed citations
8.
Choi, Cheuk‐Wai, et al.. (2019). Global comparison of cancer outcomes: standardization and correlation with healthcare expenditures. BMC Public Health. 19(1). 1065–1065. 20 indexed citations
9.
Yeo, Winnie, Inda Soong, Frankie Mo, et al.. (2018). Efficacy and tolerability of trastuzumab emtansine in advanced human epidermal growth factor receptor 2–positive breast cancer. Hong Kong Medical Journal. 24(1). 56–62. 5 indexed citations
10.
Au, Kwok Hung, Roger K.C. Ngan, Alice Ng, et al.. (2017). Treatment outcomes of nasopharyngeal carcinoma in modern era after intensity modulated radiotherapy (IMRT) in Hong Kong: A report of 3328 patients. Annals of Oncology. 28. x103–x103. 1 indexed citations
11.
Velden, Joanne M. van der, Vithusha Ganesh, Sherlyn Vuong, et al.. (2017). Prophylaxis of radiation-induced nausea and vomiting: a systematic review and meta-analysis of randomized controlled trials. Annals of Palliative Medicine. 6(2). 104–117. 12 indexed citations
12.
13.
Yip, Timothy T. C., et al.. (2014). Application of circulating plasma/serum EBV DNA in the clinical management of nasopharyngeal carcinoma. Oral Oncology. 50(6). 527–538. 83 indexed citations
14.
Ngan, Roger K.C., Dora L.�W. Kwong, Tim H.‐M. Huang, et al.. (2014). Abstract 2298: Methylated gene markers discovered in nasopharyngeal carcinoma by differential methylation hybridization (DMH) in high density CpG island DNA chips. Cancer Research. 74(19_Supplement). 2298–2298. 1 indexed citations
15.
Tung, Stewart Y., Daniel T. T. Chua, Roger K.C. Ngan, et al.. (2009). 8503 Final report of NPC-9901trial on therapeutic gain and late toxicities attributed to concurrent-adjuvant chemotherapy for T1–4N2–3M0 nasopharyngeal carcinoma. European Journal of Cancer Supplements. 7(2). 471–471. 1 indexed citations
16.
17.
Lau, George, Harry Yiu, Dyt Fong, et al.. (2003). Early is superior to deferred preemptive lamivudine therapy for hepatitis B patients undergoing chemotherapy. Gastroenterology. 125(6). 1742–1749. 346 indexed citations
18.
Ngan, Roger K.C., Harry Yiu, W.H. Lau, et al.. (2002). Combination gemcitabine and cisplatin chemotherapy for metastatic or recurrent nasopharyngeal carcinoma: report of a phase II study. Annals of Oncology. 13(8). 1252–1258. 137 indexed citations
19.
Ngan, Roger K.C., et al.. (2002). Central nervous system metastasis from nasopharyngeal carcinoma. Cancer. 94(2). 398–405. 38 indexed citations
20.
Cheuk, Wah, John K. C. Chan, & Roger K.C. Ngan. (1999). Dedifferentiation in Adenoid Cystic Carcinoma of Salivary Gland. The American Journal of Surgical Pathology. 23(4). 465–472. 109 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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