Ranjiv Sivanandan

2.9k total citations · 1 hit paper
17 papers, 2.3k citations indexed

About

Ranjiv Sivanandan is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Ranjiv Sivanandan has authored 17 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Surgery, 5 papers in Pulmonary and Respiratory Medicine and 4 papers in Oncology. Recurrent topics in Ranjiv Sivanandan's work include Gastrointestinal disorders and treatments (3 papers), Photodynamic Therapy Research Studies (3 papers) and Head and Neck Cancer Studies (3 papers). Ranjiv Sivanandan is often cited by papers focused on Gastrointestinal disorders and treatments (3 papers), Photodynamic Therapy Research Studies (3 papers) and Head and Neck Cancer Studies (3 papers). Ranjiv Sivanandan collaborates with scholars based in Singapore, United States and India. Ranjiv Sivanandan's co-authors include Michael J. Kaplan, Gregory T. Wolf, Irving L. Weissman, Adam Kaczorowski, Mark E. Prince, Laurie Ailles, Piero Dalerba, Michael F. Clarke, Khee Chee Soo and Wei Zheng and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Cancer and International Journal of Radiation Oncology*Biology*Physics.

In The Last Decade

Ranjiv Sivanandan

17 papers receiving 2.2k citations

Hit Papers

align trajectories

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.

Identification of a subpopulation of cells with cancer stem cell properties in head and neck squamous cell carcinoma

2007 1.7k citations Mark E. Prince, Ranjiv Sivanandan et al. Proceedings of the National Academy of Sciences profile →

Peers

Ranjiv Sivanandan

ONCOL

SURGE

OTORH

Annemieke van Zante United States

Renê Gerhard Brazil

S. A. Eccles United Kingdom

Dominic Fong Austria

Christina MacMillan Canada

Leonardo Faoro United States

Dafydd Thomas United States

Caj Haglund Finland

You Hong Fan United States

Abha Khanna United States

Annemieke van Zante United States

Ranjiv Sivanandan

638 ×0.4

ONCOL

690 ×0.7

228 ×0.4

721 ×1.6

SURGE

522 ×1.9

OTORH

Citations per year, relative to Ranjiv Sivanandan Ranjiv Sivanandan (= 1×) peers Annemieke van Zante

Countries citing papers authored by Ranjiv Sivanandan

Since Specialization

Citations

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

Fields of papers citing papers by Ranjiv Sivanandan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ranjiv Sivanandan. 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 Ranjiv Sivanandan. The network helps show where Ranjiv Sivanandan may publish in the future.

Co-authorship network of co-authors of Ranjiv Sivanandan

This figure shows the co-authorship network connecting the top 25 collaborators of Ranjiv Sivanandan. A scholar is included among the top collaborators of Ranjiv Sivanandan 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 Ranjiv Sivanandan. Ranjiv Sivanandan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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17 of 17 papers shown

Iyer, N. Gopalakrishna, Daniel Shao-Weng Tan, Weining Wang, et al.. (2015). Randomized trial comparing surgery and adjuvant radiotherapy versus concurrent chemoradiotherapy in patients with advanced, nonmetastatic squamous cell carcinoma of the head and neck: 10‐year update and subset analysis. Cancer. 121(10). 1599–1607. 136 indexed citations

Lee, Ser Yee, Weng Hoong Chan, Ranjiv Sivanandan, Dennis Lim, & Wai Keong Wong. (2009). Recurrent giant fibrovascular polyp of the esophagus. World Journal of Gastroenterology. 15(29). 3697–3697. 42 indexed citations

Chew, Min Hoe, et al.. (2008). Risk‐stratified Management of Well‐differentiated Thyroid Cancers: A Review of Experience from a Single Institution, 1990–2003. World Journal of Surgery. 32(3). 386–394. 3 indexed citations

Prince, Mark E., Ranjiv Sivanandan, Adam Kaczorowski, et al.. (2007). Identification of a subpopulation of cells with cancer stem cell properties in head and neck squamous cell carcinoma. Proceedings of the National Academy of Sciences. 104(3). 973–978. 1720 indexed citations breakdown →

Shirazi, Haider, Ranjiv Sivanandan, Richard L. Goode, et al.. (2006). Advanced‐staged tonsillar squamous carcinoma: Organ preservation versus surgical management of the primary site. Head & Neck. 28(7). 587–594. 20 indexed citations

Loo, Billy W., Mary T. Draney, Ranjiv Sivanandan, et al.. (2006). Indirect MR lymphangiography of the head and neck using conventional gadolinium contrast: A pilot study in humans. International Journal of Radiation Oncology*Biology*Physics. 66(2). 462–468. 19 indexed citations

Nayak, Soubhagya R., Latha V. Prabhu, & Ranjiv Sivanandan. (2005). Third head of biceps brachii: A rare occurrence in the Indian population. Annals of Anatomy - Anatomischer Anzeiger. 188(2). 159–161. 16 indexed citations

Sivanandan, Ranjiv, Michael J. Kaplan, Harlan Pinto, et al.. (2004). Long-term Results of 100 Consecutive Comprehensive Neck Dissections. Archives of Otolaryngology - Head and Neck Surgery. 130(12). 1369–1369. 26 indexed citations

Sivanandan, Ranjiv, et al.. (2004). Laryngeal Embryonal Rhabdomyosarcoma. Archives of Otolaryngology - Head and Neck Surgery. 130(10). 1217–1217. 9 indexed citations

10.

Sivanandan, Ranjiv, et al.. (2004). Postoperative endocrine function in patients with surgically treated thyrotoxicosis. Head & Neck. 26(4). 331–337. 5 indexed citations

11.

Soltys, Scott G., Willard E. Fee, Harlan Pinto, et al.. (2004). Is a planned neck dissection necessary after chemoradiotherapy in head and neck cancer patients with advanced nodal stage. International Journal of Radiation Oncology*Biology*Physics. 60(1). S495–S495. 1 indexed citations

12.

Zheng, Wei, Khee Chee Soo, Ranjiv Sivanandan, & Malini Olivo. (2002). Detection of squamous cell carcinomas and pre‐cancerous lesions in the oral cavity by quantification of 5‐aminolevulinic acid induced fluorescence endoscopic images. Lasers in Surgery and Medicine. 31(3). 151–157. 31 indexed citations

13.

Zheng, Wei, Khee Chee Soo, Ranjiv Sivanandan, & Malini Olivo. (2002). Detection of neoplasms in the oral cavity by digitized endoscopic imaging of 5-aminolevulinic acid-induced protoporphyrin IX fluorescence. International Journal of Oncology. 21(4). 763–8. 29 indexed citations

14.

Zheng, Wei, et al.. (2001). <title>Endoscopy imaging of 5-ALA-induced PPIX fluorescence for detecting early neoplasms in the oral cavity</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4597. 128–132. 4 indexed citations

15.

Sivanandan, Ranjiv & Khee Chee Soo. (2001). Pattern of cervical lymph node metastases from papillary carcinoma of the thyroid. British journal of surgery. 88(9). 1241–1244. 154 indexed citations

16.

Connolly, Bairbre, Peter Chait, Ranjiv Sivanandan, Donna Duncan, & Michael Peer. (1998). Recognition of intussusception around gastrojejunostomy tubes in children.. American Journal of Roentgenology. 170(2). 467–470. 22 indexed citations

17.

Al‐Nakib, Basil, et al.. (1994). Unusual presentations of abdominal tuberculosis.. PubMed. 37(4). 300–6. 16 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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