Marian Showell

3.6k total citations · 1 hit paper
47 papers, 1.9k citations indexed

About

Marian Showell is a scholar working on Public Health, Environmental and Occupational Health, Pediatrics, Perinatology and Child Health and Reproductive Medicine. According to data from OpenAlex, Marian Showell has authored 47 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Public Health, Environmental and Occupational Health, 22 papers in Pediatrics, Perinatology and Child Health and 21 papers in Reproductive Medicine. Recurrent topics in Marian Showell's work include Assisted Reproductive Technology and Twin Pregnancy (18 papers), Ovarian function and disorders (16 papers) and Meta-analysis and systematic reviews (12 papers). Marian Showell is often cited by papers focused on Assisted Reproductive Technology and Twin Pregnancy (18 papers), Ovarian function and disorders (16 papers) and Meta-analysis and systematic reviews (12 papers). Marian Showell collaborates with scholars based in New Zealand, United Kingdom and Australia. Marian Showell's co-authors include Cindy Farquhar, Rebecca Mackenzie-Proctor, Roger Hart, Peter Herbison, A.A. MacDonald, Vanessa Jordan, Julie Brown, Anusch Yazdani, Marcin T Stankiewicz and Roos M. Smits and has published in prestigious journals such as PLoS ONE, Cochrane Database of Systematic Reviews and American Journal of Obstetrics and Gynecology.

In The Last Decade

Marian Showell

43 papers receiving 1.8k citations

Hit Papers

Antioxidants for male subfertility 2019 2026 2021 2023 2019 50 100 150 200
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.

  1. Antioxidants for male subfertility
    2019 208 citations Rebecca Mackenzie-Proctor, Vanessa Jordan et al. Cochrane Database of Systematic Reviews profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Marian Showell New Zealand 21 1.0k 727 420 257 183 47 1.9k
Frank Lüdicke Switzerland 25 324 0.3× 865 1.2× 343 0.8× 252 1.0× 83 0.5× 58 2.1k
Sandro Gerli Italy 25 992 1.0× 882 1.2× 556 1.3× 920 3.6× 148 0.8× 128 2.4k
Elisabetta Zanolin Italy 16 619 0.6× 503 0.7× 134 0.3× 91 0.4× 422 2.3× 40 1.7k
Eduardo Salazar-Martı́nez Mexico 19 193 0.2× 388 0.5× 95 0.2× 100 0.4× 125 0.7× 39 1.4k
Bahia Namavar Jahromi Iran 20 458 0.4× 544 0.7× 341 0.8× 222 0.9× 81 0.4× 114 1.5k
Susan A. Kaye United States 23 143 0.1× 1.1k 1.5× 236 0.6× 170 0.7× 394 2.2× 30 2.8k
Ali Kolusarı Türkiye 19 474 0.5× 342 0.5× 256 0.6× 318 1.2× 89 0.5× 70 1.2k
Te‐Fu Chan Taiwan 24 155 0.2× 325 0.4× 239 0.6× 325 1.3× 208 1.1× 82 1.9k
Iñaki Lete Spain 20 243 0.2× 687 0.9× 263 0.6× 206 0.8× 51 0.3× 80 1.1k
Karsten Muenstedt Germany 19 392 0.4× 125 0.2× 158 0.4× 241 0.9× 10 0.1× 51 1.4k

Countries citing papers authored by Marian Showell

Since Specialization
Citations

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

Fields of papers citing papers by Marian Showell

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Marian Showell

This figure shows the co-authorship network connecting the top 25 collaborators of Marian Showell. A scholar is included among the top collaborators of Marian Showell 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 Marian Showell. Marian Showell 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.
Copeland, Timothy P., et al.. (2025). Triggering Oocyte Maturation in In Vitro Fertilization Treatment in Healthy Responders: A Systematic Review and Network Meta-analysis. Obstetrical & Gynecological Survey. 80(9). 562–564.
2.
Pușcașiu, Lucian, et al.. (2025). Preoperative medical therapy before surgery for uterine fibroids. Cochrane Database of Systematic Reviews. 2025(4). CD000547–CD000547.
3.
4.
Beebeejaun, Yusuf, Timothy P. Copeland, Ippokratis Sarris, et al.. (2024). Triggering oocyte maturation in in vitro fertilization treatment in healthy responders: a systematic review and network meta-analysis. Fertility and Sterility. 123(5). 812–826. 2 indexed citations
5.
6.
7.
Danhof, N A, Rik van Eekelen, Michael P. Diamond, et al.. (2022). Ovarian stimulation strategies for intrauterine insemination in couples with unexplained infertility: a systematic review and individual participant data meta-analysis. Human Reproduction Update. 28(5). 733–746. 9 indexed citations
8.
Wilkinson, Jack, Marian Showell, Vicky P. Taxiarchi, & Sarah Lensen. (2022). Are we leaving money on the table in infertility RCTs? Trialists should statistically adjust for prespecified, prognostic covariates to increase power. Human Reproduction. 37(5). 895–901. 4 indexed citations
9.
Bordewijk, Esmée M, Wentao Li, Rik van Eekelen, et al.. (2021). Methods to assess research misconduct in health-related research: A scoping review. Journal of Clinical Epidemiology. 136. 189–202. 33 indexed citations
10.
Wang, Rui, Kerry Dwan, Marian Showell, et al.. (2021). Reporting of Cochrane systematic review protocols with network meta‐analyses—A scoping review. Research Synthesis Methods. 13(2). 164–175. 6 indexed citations
11.
Showell, Marian, Rebecca Mackenzie-Proctor, Vanessa Jordan, & Roger Hart. (2020). Antioxidants for female subfertility. Cochrane Database of Systematic Reviews. 2026(3). 85 indexed citations
12.
Stocking, Katie, et al.. (2020). Patient Decision Aids to Facilitate Shared Decision Making in Obstetrics and Gynecology. Obstetrics and Gynecology. 135(2). 444–451. 54 indexed citations
13.
Hirsch, Martin, Chris Gale, Louise Pealing, et al.. (2017). Outcome reporting across randomised controlled trials evaluating therapeutic interventions for pre-eclampsia: a systematic review. British Journal of Obstetrics and Gynaecology. 1 indexed citations
14.
Farquhar, Cindy, et al.. (2017). Clinical trial registration in fertility trials – a case for improvement?. Human Reproduction. 32(9). 1827–1834. 8 indexed citations
15.
Farquhar, Cindy, Jane Marjoribanks, Julie Brown, et al.. (2017). Management of ovarian stimulation for IVF: narrative review of evidence provided for World Health Organization guidance. Reproductive BioMedicine Online. 35(1). 3–16. 22 indexed citations
16.
Duffy, James MN, Martin Hirsch, Chris Gale, et al.. (2017). Outcome reporting across randomised controlled trials evaluating therapeutic interventions for pre‐eclampsia. BJOG An International Journal of Obstetrics & Gynaecology. 124(12). 1829–1839. 34 indexed citations
17.
Duffy, James MN, Martin Hirsch, Chris Gale, et al.. (2017). A systematic review of primary outcomes and outcome measure reporting in randomized trials evaluating treatments for pre‐eclampsia. International Journal of Gynecology & Obstetrics. 139(3). 262–267. 24 indexed citations
18.
Wilkinson, Jack, Stephen A. Roberts, Marian Showell, Daniel R. Brison, & Andy Vail. (2016). No common denominator: a review of outcome measures in IVF RCTs. Human Reproduction. 31(12). 2714–2722. 44 indexed citations
19.
Jordan, Vanessa, et al.. (2012). Methodological Quality of Systematic Reviews in Subfertility: A Comparison of Two Different Approaches. PLoS ONE. 7(12). e50403–e50403. 37 indexed citations
20.

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 Frank Lüdicke Breakdown of academic impact, for papers by Sandro Gerli Breakdown of academic impact, for papers by Elisabetta Zanolin Breakdown of academic impact, for papers by Eduardo Salazar-Martı́nez Breakdown of academic impact, for papers by Bahia Namavar Jahromi Breakdown of academic impact, for papers by Susan A. Kaye Breakdown of academic impact, for papers by Ali Kolusarı Breakdown of academic impact, for papers by Te‐Fu Chan Breakdown of academic impact, for papers by Iñaki Lete Breakdown of academic impact, for papers by Karsten Muenstedt
Rankless by CCL
2026