Nikolaos P. Polyzos

10.5k total citations · 4 hit papers
196 papers, 6.2k citations indexed

About

Nikolaos P. Polyzos is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Nikolaos P. Polyzos has authored 196 papers receiving a total of 6.2k indexed citations (citations by other indexed papers that have themselves been cited), including 146 papers in Reproductive Medicine, 125 papers in Public Health, Environmental and Occupational Health and 76 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Nikolaos P. Polyzos's work include Ovarian function and disorders (111 papers), Reproductive Biology and Fertility (110 papers) and Assisted Reproductive Technology and Twin Pregnancy (68 papers). Nikolaos P. Polyzos is often cited by papers focused on Ovarian function and disorders (111 papers), Reproductive Biology and Fertility (110 papers) and Assisted Reproductive Technology and Twin Pregnancy (68 papers). Nikolaos P. Polyzos collaborates with scholars based in Belgium, Spain and Denmark. Nikolaos P. Polyzos's co-authors include Herman Tournaye, Davide Mauri, Christophe Blockeel, Panagiotis Drakopoulos, Antonis Valachis, Paul Devroey, Samuel Santos‐Ribeiro, Michel De Vos, Dominic Stoop and Peter Humaidan and has published in prestigious journals such as Nature Medicine, Journal of Clinical Oncology and The EMBO Journal.

In The Last Decade

Nikolaos P. Polyzos

178 papers receiving 6.0k 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.

Conventional ovarian stimulation and single embryo transfer for IVF/ICSI. How many oocytes do we need to maximize cumulative live birth rates after utilization of all fresh and frozen embryos?

2016 296 citations Panagiotis Drakopoulos, Christophe Blockeel et al. Human Reproduction profile →
ESHRE guideline: ovarian stimulation for IVF/ICSI†

2020 276 citations Ernesto Bosch, Simone L. Broer et al. Human Reproduction Open profile →
Cumulative live birth rates according to the number of oocytes retrieved after the first ovarian stimulation for in vitro fertilization/intracytoplasmic sperm injection: a multicenter multinational analysis including ∼15,000 women

2018 217 citations Nikolaos P. Polyzos, Panagiotis Drakopoulos et al. Fertility and Sterility profile →
Good practice recommendations on add-ons in reproductive medicine

2023 61 citations Kersti Lundin, J. G. Bentzen et al. Human Reproduction profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Nikolaos P. Polyzos Belgium	47	4.2k	3.8k	2.4k	733	650	196	6.2k
John R. Lurain United States	41	1.2k 0.3×	3.2k 0.8×	2.6k 1.1×	1.1k 1.4×	191 0.3×	176	6.4k
Julian C. Schink United States	35	981 0.2×	983 0.3×	704 0.3×	579 0.8×	143 0.2×	141	3.4k
Roy F.P.M. Kruitwagen Netherlands	37	2.3k 0.6×	501 0.1×	282 0.1×	1.1k 1.6×	254 0.4×	178	5.2k
S. Pecorelli Italy	34	3.5k 0.8×	514 0.1×	375 0.2×	1.3k 1.7×	340 0.5×	97	6.8k
Neil B. Rosenshein United States	34	1.6k 0.4×	566 0.1×	289 0.1×	883 1.2×	182 0.3×	110	4.3k
Jubilee Brown United States	32	1.6k 0.4×	487 0.1×	212 0.1×	877 1.2×	134 0.2×	130	3.3k
Annekathryn Goodman United States	36	2.0k 0.5×	364 0.1×	258 0.1×	1.1k 1.5×	165 0.3×	193	4.4k
Linda Duska United States	35	2.1k 0.5×	403 0.1×	184 0.1×	1.2k 1.6×	294 0.5×	232	4.4k
Giuseppe Gullo Italy	29	888 0.2×	475 0.1×	343 0.1×	275 0.4×	223 0.3×	135	1.9k
Karen L. Smith United States	21	1.1k 0.3×	926 0.2×	296 0.1×	570 0.8×	52 0.1×	81	2.5k

Countries citing papers authored by Nikolaos P. Polyzos

Since Specialization

Citations

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

Fields of papers citing papers by Nikolaos P. Polyzos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nikolaos P. Polyzos. 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 Nikolaos P. Polyzos. The network helps show where Nikolaos P. Polyzos may publish in the future.

Co-authorship network of co-authors of Nikolaos P. Polyzos

This figure shows the co-authorship network connecting the top 25 collaborators of Nikolaos P. Polyzos. A scholar is included among the top collaborators of Nikolaos P. Polyzos 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 Nikolaos P. Polyzos. Nikolaos P. Polyzos 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

Rodríguez, Ignacio, et al.. (2024). Double versus single stimulation in young low prognosis patients followed by a fresh embryo transfer: a randomized controlled trial (DUOSTIM-fresh). Human Reproduction. 39(7). 1548–1557. 6 indexed citations

Calhaz–Jorge, Carlos, Christian De Geyter, Thomas Ebner, et al.. (2024). EuMAR stakeholder engagement: an analysis of medically assisted reproduction (MAR) data collection practices in EU countries. Human Reproduction. 39(11). 2379–2386. 1 indexed citations

García, Sandra, et al.. (2024). Decreased human sperm motility and vitality after fast gravity load changes in a parabolic flight. Acta Astronautica. 223. 640–648. 1 indexed citations

González-Foruria, Iñaki, Sandra García, M. Álvarez, et al.. (2023). Elevated serum progesterone levels before frozen embryo transfer do not negatively impact reproductive outcomes: a large retrospective cohort study. Fertility and Sterility. 120(3). 597–604. 6 indexed citations

Lundin, Kersti, J. G. Bentzen, Gürkan Bozdağ, et al.. (2023). Good practice recommendations on add-ons in reproductive medicine. Human Reproduction. 38(11). 2062–2104. 61 indexed citations breakdown →

Coll, Lluc, M Parriego, Ignacio Rodríguez, et al.. (2022). The effect of trophectoderm biopsy technique and sample handling on artefactual mosaicism. Journal of Assisted Reproduction and Genetics. 39(6). 1333–1340. 4 indexed citations

Martínez, Francisca, et al.. (2022). Comparison of blastocyst euploidy rates following luteal versus follicular phase stimulation in a GnRH antagonist protocol: a prospective study with repeated ovarian stimulation cycles. Human Reproduction. 37(12). 2777–2786. 8 indexed citations

Conforti, Alessandro, Frank Tüttelmann, Carlo Alviggi, et al.. (2022). Effect of Genetic Variants of Gonadotropins and Their Receptors on Ovarian Stimulation Outcomes: A Delphi Consensus. Frontiers in Endocrinology. 12. 797365–797365. 22 indexed citations

Coll, Lluc, M Parriego, Sandra García, et al.. (2022). Do reproductive history and information given through genetic counselling influence patients' decisions on mosaic embryo transfer?. Prenatal Diagnosis. 42(13). 1650–1657.

10.

Clua, Elísabet, Ignacio Rodríguez, Gemma Arroyo, et al.. (2022). Blastocyst versus cleavage embryo transfer improves cumulative live birth rates, time and cost in oocyte recipients: a randomized controlled trial. Reproductive BioMedicine Online. 44(6). 995–1004. 16 indexed citations

11.

Drakopoulos, Panagiotis, et al.. (2021). The Effect of Ejaculatory Abstinence Interval on Sperm Parameters and Clinical Outcome of ART. A Systematic Review of the Literature. Journal of Clinical Medicine. 10(15). 3213–3213. 16 indexed citations

12.

Polyzos, Nikolaos P., Panagiotis Drakopoulos, Claudia Spits, et al.. (2021). The effect of polymorphisms in FSHR and FSHB genes on ovarian response: a prospective multicenter multinational study in Europe and Asia. Human Reproduction. 36(6). 1711–1721. 27 indexed citations

13.

Drakopoulos, Panagiotis, et al.. (2020). Fresh and cumulative live birth rates in mild versus conventional stimulation for IVF cycles in poor ovarian responders: a systematic review and meta-analysis. Human Reproduction Open. 2021(1). hoaa066–hoaa066. 16 indexed citations

14.

González-Foruria, Iñaki, Manuel Álvarez, Francisca Martínez, et al.. (2020). Factors associated with serum progesterone concentrations the day before cryopreserved embryo transfer in artificial cycles. Reproductive BioMedicine Online. 40(6). 797–804. 46 indexed citations

15.

Bosch, Ernesto, Simone L. Broer, Georg Griesinger, et al.. (2020). ESHRE guideline: ovarian stimulation for IVF/ICSI†. Human Reproduction Open. 2020(2). hoaa009–hoaa009. 276 indexed citations breakdown →

16.

Drakopoulos, Panagiotis, Juan A. García-Velasco, Ernesto Bosch, et al.. (2019). ICSI does not offer any benefit over conventional IVF across different ovarian response categories in non-male factor infertility: a European multicenter analysis. Journal of Assisted Reproduction and Genetics. 36(10). 2067–2076. 30 indexed citations

17.

Martínez, Francisca, Lluc Coll, Sandra García, et al.. (2018). Low serum progesterone the day prior to frozen embryo transfer of euploid embryos is associated with significant reduction in live birth rates. Gynecological Endocrinology. 35(5). 439–442. 88 indexed citations

18.

Blockeel, Christophe, Panagiotis Drakopoulos, Nikolaos P. Polyzos, Herman Tournaye, & Juan A. García-Velasco. (2017). Review the ‘peer review’. Reproductive BioMedicine Online. 35(6). 747–749. 11 indexed citations

19.

Polyzos, Nikolaos P., Michel Camus, Joaquín Llácer, Konstantinos Pantos, & Herman Tournaye. (2013). Corifollitropin α followed by menotropin for poor ovarian responders’ trial (COMPORT): a protocol of a multicentre randomised trial. BMJ Open. 3(6). e002938–e002938. 11 indexed citations

20.

Kamposioras, Konstantinos, et al.. (2007). Impact of chest radiography screening on healthcare spending - Reply. The American Journal of Managed Care. 13(4). 218–219. 2 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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