Ryszard J. Chetkowski

903 total citations
20 papers, 659 citations indexed

About

Ryszard J. Chetkowski is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Ryszard J. Chetkowski has authored 20 papers receiving a total of 659 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Reproductive Medicine, 9 papers in Public Health, Environmental and Occupational Health and 8 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Ryszard J. Chetkowski's work include Reproductive Biology and Fertility (8 papers), Assisted Reproductive Technology and Twin Pregnancy (7 papers) and Ovarian function and disorders (6 papers). Ryszard J. Chetkowski is often cited by papers focused on Reproductive Biology and Fertility (8 papers), Assisted Reproductive Technology and Twin Pregnancy (7 papers) and Ovarian function and disorders (6 papers). Ryszard J. Chetkowski collaborates with scholars based in United States, Spain and Philippines. Ryszard J. Chetkowski's co-authors include David R. Meldrum, Kenneth A. Steingold, Thomas E. Nass, JOHN DEFAZIO, Howard L. Judd, Dennis W. Matt, William R. Salyer, R. Jeffrey Chang, Larry R. Laufer and Issa M. Shamonki and has published in prestigious journals such as JAMA, The Journal of Clinical Endocrinology & Metabolism and Fertility and Sterility.

In The Last Decade

Ryszard J. Chetkowski

20 papers receiving 594 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryszard J. Chetkowski United States 13 427 313 173 156 120 20 659
A. Lewin Israel 13 417 1.0× 298 1.0× 177 1.0× 70 0.4× 116 1.0× 29 614
V. Gabriel Garzo United States 9 486 1.1× 427 1.4× 78 0.5× 243 1.6× 106 0.9× 15 699
Rina Agrawal United Kingdom 15 627 1.5× 463 1.5× 141 0.8× 89 0.6× 43 0.4× 21 795
B. C. J. M. Fauser Netherlands 13 659 1.5× 455 1.5× 168 1.0× 98 0.6× 120 1.0× 18 824
Velimir Šimunić Croatia 13 327 0.8× 307 1.0× 85 0.5× 71 0.5× 61 0.5× 30 532
R. Sturm Germany 14 473 1.1× 356 1.1× 112 0.6× 74 0.5× 96 0.8× 21 579
Marlies E. Kevenaar Netherlands 6 463 1.1× 458 1.5× 80 0.5× 73 0.5× 111 0.9× 8 609
Waldemar Kuczyński Poland 16 505 1.2× 511 1.6× 273 1.6× 29 0.2× 63 0.5× 47 756
Ricardo Pommer Chile 16 395 0.9× 268 0.9× 151 0.9× 47 0.3× 135 1.1× 31 669
Daniela Tagliasacchi Italy 9 531 1.2× 466 1.5× 199 1.2× 64 0.4× 81 0.7× 12 656

Countries citing papers authored by Ryszard J. Chetkowski

Since Specialization
Citations

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

Fields of papers citing papers by Ryszard J. Chetkowski

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryszard J. Chetkowski. 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 Ryszard J. Chetkowski. The network helps show where Ryszard J. Chetkowski may publish in the future.

Co-authorship network of co-authors of Ryszard J. Chetkowski

This figure shows the co-authorship network connecting the top 25 collaborators of Ryszard J. Chetkowski. A scholar is included among the top collaborators of Ryszard J. Chetkowski 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 Ryszard J. Chetkowski. Ryszard J. Chetkowski 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.
Chetkowski, Ryszard J., et al.. (2021). Beyond the uterine first pass: optimizing programmed frozen embryo transfers. A mini-review. F&S Reports. 2(3). 256–260. 2 indexed citations
2.
Aghajanova, Lusine, et al.. (2015). Birth of a healthy child after preimplantation genetic screening of embryos from sperm of a man with non-mosaic Down syndrome. Journal of Assisted Reproduction and Genetics. 32(9). 1409–1413. 15 indexed citations
3.
Széll, Á., et al.. (2013). Live births from frozen human semen stored for 40 years. Journal of Assisted Reproduction and Genetics. 30(6). 743–744. 40 indexed citations
4.
Chetkowski, Ryszard J., et al.. (2004). Transfer and uterine factors are the major recipient-related determinants of success with donor eggs. Fertility and Sterility. 82(4). 850–856. 54 indexed citations
5.
Chetkowski, Ryszard J., et al.. (2002). Inclusion of heterozygotes for cystic fibrosis in the egg donor pool. Fertility and Sterility. 78(3). 557–561. 4 indexed citations
6.
7.
Chetkowski, Ryszard J., et al.. (1997). In premature luteinization, progesterone induces secretory transformation of the endometrium without impairment of embryo viability. Fertility and Sterility. 68(2). 292–297. 50 indexed citations
8.
Chetkowski, Ryszard J., et al.. (1996). Donation of frozen embryos after in vitro fertilization is uncommon. Fertility and Sterility. 66(5). 837–838. 30 indexed citations
9.
Chetkowski, Ryszard J., Richard A. Rode, Victoria R. Burruel, & Thomas E. Nass. (1991). The effect of pituitary suppression and the women’s age on embryo viability and uterine receptivity. Fertility and Sterility. 56(6). 1095–1103. 22 indexed citations
10.
Chetkowski, Ryszard J., et al.. (1989). Improved pregnancy outcome with the addition of leuprolide acetate to gonadotropins for in vitro fertilization. Fertility and Sterility. 52(2). 250–255. 42 indexed citations
11.
Chetkowski, Ryszard J. & Thomas E. Nass. (1988). Isofluorane inhibits early mouse embryo development in vitro. Fertility and Sterility. 49(1). 171–173. 31 indexed citations
12.
Meldrum, David R., et al.. (1987). Evolution of a highly successful in vitro fertilization-embryo transfer program. Fertility and Sterility. 48(1). 86–93. 93 indexed citations
13.
Chetkowski, Ryszard J., David R. Meldrum, Kenneth A. Steingold, et al.. (1986). Biologic Effects of Transdermal Estradiol. Obstetrical & Gynecological Survey. 41(11). 710–711. 2 indexed citations
14.
Chetkowski, Ryszard J.. (1985). Autonomous Cortisol Secretion by a Lipoid Cell Tumor of the Ovary. JAMA. 254(18). 2628–2628. 9 indexed citations
15.
Chetkowski, Ryszard J., R. Jeffrey Chang, JOHN DEFAZIO, David R. Meldrum, & Howard L. Judd. (1985). Origin of Serum Progestins in Polycystic Ovarian Disease. Obstetrical & Gynecological Survey. 40(3). 170–172. 10 indexed citations
16.
Steingold, Kenneth A., Larry R. Laufer, Ryszard J. Chetkowski, et al.. (1985). Treatment of Hot Flashes with Transdermal Estradiol Administration*. The Journal of Clinical Endocrinology & Metabolism. 61(4). 627–632. 118 indexed citations
17.
Chetkowski, Ryszard J., Hideki Sakamoto, Neil J. MacLusky, Maria J. Merino, & Peter E. Schwartz. (1985). Solitary pelvic neural tumors with high steroid receptor content. Gynecologic Oncology. 20(1). 43–52. 5 indexed citations
18.
Chetkowski, Ryszard J., Thomas E. Nass, Dennis W. Matt, et al.. (1985). Optimization of hydrogen-ion concentration during aspiration of oocytes and culture and transfer of embryos. Journal of Assisted Reproduction and Genetics. 2(4). 207–212. 15 indexed citations
19.
Meldrum, David R., et al.. (1984). Transvaginal ultrasound scanning of ovarian follicles. Fertility and Sterility. 42(5). 803–805. 19 indexed citations
20.
Chetkowski, Ryszard J., JOHN DEFAZIO, Issa M. Shamonki, Howard L. Judd, & R. Jeffrey Chang. (1984). The Incidence of Late-Onset Congenital Adrenal Hyperplasia due to 21-Hydroxylase Deficiency among Hirsute Women*. The Journal of Clinical Endocrinology & Metabolism. 58(4). 595–598. 86 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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