Greta Dreyer

1.3k total citations
74 papers, 848 citations indexed

About

Greta Dreyer is a scholar working on Epidemiology, Surgery and Oncology. According to data from OpenAlex, Greta Dreyer has authored 74 papers receiving a total of 848 indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Epidemiology, 29 papers in Surgery and 18 papers in Oncology. Recurrent topics in Greta Dreyer's work include Cervical Cancer and HPV Research (55 papers), Genital Health and Disease (21 papers) and Hepatitis B Virus Studies (18 papers). Greta Dreyer is often cited by papers focused on Cervical Cancer and HPV Research (55 papers), Genital Health and Disease (21 papers) and Hepatitis B Virus Studies (18 papers). Greta Dreyer collaborates with scholars based in South Africa, Norway and United States. Greta Dreyer's co-authors include Leon Snyman, Matthys H. Botha, Karin Richter, Piet Becker, Haynes Van Der Merwe, Babill Stray‐Pedersen, Anna Mary Nyakabau, Elizabeth J. van Rensburg, Amanda Horton and B. G. Lindeque and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Cancer Research.

In The Last Decade

Greta Dreyer

64 papers receiving 836 citations

Peers

Greta Dreyer

EPIDE

ONCOL

SURGE

MICRO

Maria Sibug Saber United States

Vanessa Tenet France

Louise Baandrup Denmark

Eileen Dareng United States

Talía Malagón Canada

H. R. Shin South Korea

Amanda Tristram United Kingdom

Silvia de Sanjosé Spain

Francesco Sopracordevole Italy

Shubhada Kane India

Maria Sibug Saber United States

Greta Dreyer

725 ×1.2

EPIDE

251 ×1.0

ONCOL

453 ×1.9

SURGE

117 ×1.1

43 ×0.5

MICRO

Citations per year, relative to Greta Dreyer Greta Dreyer (= 1×) peers Maria Sibug Saber

Countries citing papers authored by Greta Dreyer

Since Specialization

Citations

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

Fields of papers citing papers by Greta Dreyer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Greta Dreyer

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

All Works

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20 of 20 papers shown

Dreyer, Greta, et al.. (2025). Clinico-pathological and treatment characteristics of HIV and non-HIV related vulvar cancers: Analysis of a South African cohort. PLoS ONE. 20(7). e0327119–e0327119.

Richter, Karin, et al.. (2025). Aptima HPV E6/E7 mRNA and cytology cross-sectional performance as primary screening tests for detection of high-grade cervical lesions in HIV positive and negative women in South Africa. Journal of Medical Screening. 32(3). 133–140.

Dreyer, Greta, et al.. (2024). The performance of single and combination test strategies using visual inspection, cytology, high-risk HPV DNA and HPV16/18 to screen South African women with and without HIV-infection. Infectious Agents and Cancer. 19(1). 22–22. 2 indexed citations

Dreyer, Greta, et al.. (2024). Sociodemographics, behaviour and knowledge of first South African HPV-vaccine recipients. SHILAP Revista de lepidopterología. 66(1). e1–e6.

Luckett, Rebecca, Doreen Ramogola‐Masire, Annika Gompers, et al.. (2023). Triage of HPV positivity in a high HIV prevalence setting: A prospective cohort study comparing visual triage methods and HPV genotype restriction in Botswana. International Journal of Gynecology & Obstetrics. 165(2). 507–518. 4 indexed citations

Sørbye, Sveinung Wergeland, Matthys H. Botha, Leon Snyman, et al.. (2023). Enhancing Cervical Cancer Prevention in South African Women: Primary HPV mRNA Screening with Different Genotype Combinations. Cancers. 15(22). 5453–5453. 2 indexed citations

Snyman, Leon, Karin Richter, Azwidowi Lukhwareni, et al.. (2023). Cytology compared with Hybrid Capture 2 human papilloma virus cervical cancer screening in HIV positive and HIV negative South African women. International Journal of Gynecological Cancer. 33(5). 669–675. 3 indexed citations

Olorunfemi, Gbenga, et al.. (2023). Evaluation of the medically necessary, time sensitive triage score during and beyond the local COVID-19 pandemic in the Gynaecologic Oncology Unit of a tertiary hospital in South Africa. PLoS ONE. 18(4). e0284177–e0284177.

Dreyer, Greta, et al.. (2023). 25-Hydroxycholecalciferol Inhibits Cell Growth and Induces Apoptosis in SiHa Cervical Cells via Autocrine Vitamin D Metabolism. Biomedicines. 11(3). 871–871. 8 indexed citations

10.

Dreyer, Greta, Matthys H. Botha, Leon Snyman, et al.. (2022). Combining cervical cancer screening for mothers with schoolgirl vaccination during human papillomavirus (HPV) vaccine implementation in South Africa: results from the VACCS1 and VACCS2 trials. International Journal of Gynecological Cancer. 32(5). 592–598. 9 indexed citations

11.

Dreyer, Greta, et al.. (2021). Model strategies to address barriers to cervical cancer treatment and palliative care among women in Zimbabwe: a public health approach. BMC Women s Health. 21(1). 180–180. 6 indexed citations

12.

Zummeren, Marjolein van, et al.. (2019). The use of molecular markers for cervical screening of women living with HIV in South Africa. AIDS. 33(13). 2035–2042. 22 indexed citations

13.

Dreyer, Greta, et al.. (2019). Determinants of access and utilization of cervical cancer treatment and palliative care services in Harare, Zimbabwe. BMC Public Health. 19(1). 1018–1018. 18 indexed citations

14.

Dreyer, Greta, et al.. (2019). Clinical evaluation and budget impact analysis of cervical cancer screening using cobas 4800 HPV screening technology in the public sector of South Africa. PLoS ONE. 14(9). e0221495–e0221495. 9 indexed citations

15.

Botha, Matthys H. & Greta Dreyer. (2017). Guidelines for cervical cancer screening in South Africa. 9(1). 8–12. 25 indexed citations

16.

Snyman, Leon, Greta Dreyer, Matthys H. Botha, Haynes Van Der Merwe, & Piet Becker. (2015). The Vaccine and Cervical Cancer Screen (VACCS) project: Linking cervical cancer screening to HPV vaccination in the South-West District of Tshwane, Gauteng, South Africa. South African Medical Journal. 105(2). 115–115. 14 indexed citations

17.

Dreyer, Greta, et al.. (2008). Live twin ectopic pregnancy with a high βhCG value in a woman with a poor obstetric history. Journal of Obstetrics and Gynaecology. 28(4). 460–461. 2 indexed citations

18.

Snyman, Leon, et al.. (2006). Urine cytology as a screening test for bladder infiltration in cervical cancer. International Journal of Gynecological Cancer. 16(4). 1587–1590. 3 indexed citations

19.

Dreyer, Greta. (2005). Operative management of cervical cancer. Best Practice & Research Clinical Obstetrics & Gynaecology. 19(4). 563–576. 10 indexed citations

20.

Amant, Frédéric, Cecilia M. Dorfling, Greta Dreyer, et al.. (2002). PTEN Mutations in Uterine Sarcomas. Gynecologic Oncology. 85(1). 165–169. 35 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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