I. Ryan

1.4k total citations · 1 hit paper
8 papers, 1.2k citations indexed

About

I. Ryan is a scholar working on Reproductive Medicine, Obstetrics and Gynecology and Immunology. According to data from OpenAlex, I. Ryan has authored 8 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Reproductive Medicine, 4 papers in Obstetrics and Gynecology and 4 papers in Immunology. Recurrent topics in I. Ryan's work include Endometriosis Research and Treatment (6 papers), Reproductive System and Pregnancy (4 papers) and Uterine Myomas and Treatments (3 papers). I. Ryan is often cited by papers focused on Endometriosis Research and Treatment (6 papers), Reproductive System and Pregnancy (4 papers) and Uterine Myomas and Treatments (3 papers). I. Ryan collaborates with scholars based in United States. I. Ryan's co-authors include Robert N. Taylor, Eldon D. Schriock, Jennifer F. Tseng, Jan L. Shifren, Y. Gloria Meng, Robert B. Jaffe, Charles Zaloudek, Nicola Ferrara, James T. Murai and D V Landers and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Human Reproduction and Fertility and Sterility.

In The Last Decade

I. Ryan

8 papers receiving 1.2k 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.

Ovarian steroid regulation of vascular endothelial growth factor in the human endometrium: implications for angiogenesis during the menstrual cycle and in the pathogenesis of endometriosis.

1996 544 citations Jan L. Shifren, Jennifer F. Tseng et al. The Journal of Clinical Endocrinology & Metabolism profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
I. Ryan United States	6	918	675	615	276	168	8	1.2k
Gaurang S. Daftary United States	20	762 0.8×	442 0.7×	666 1.1×	427 1.5×	304 1.8×	52	1.4k
Jeffrey Keenan United States	14	630 0.7×	392 0.6×	435 0.7×	249 0.9×	97 0.6×	28	980
Lingwen Yuan United States	13	488 0.5×	307 0.5×	568 0.9×	126 0.5×	188 1.1×	15	856
Sophie Perrier d'HAUTERIVE Belgium	17	566 0.6×	290 0.4×	639 1.0×	199 0.7×	107 0.6×	34	1.2k
Janet Carver United Kingdom	12	501 0.5×	384 0.6×	617 1.0×	221 0.8×	87 0.5×	17	899
Toru Arase Japan	13	407 0.4×	355 0.5×	311 0.5×	204 0.7×	82 0.5×	18	829
Jun Lin China	23	777 0.8×	693 1.0×	474 0.8×	236 0.9×	55 0.3×	68	1.3k
Brianna Cloke United Kingdom	9	446 0.5×	320 0.5×	425 0.7×	190 0.7×	129 0.8×	15	803
D Licence United Kingdom	7	316 0.3×	393 0.6×	406 0.7×	291 1.1×	44 0.3×	7	816
Katsuji Kokawa Japan	16	287 0.3×	390 0.6×	426 0.7×	227 0.8×	81 0.5×	27	920

Countries citing papers authored by I. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by I. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of I. Ryan

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

All Works

Sort: Min cites: Since: Top N: Style:

8 of 8 papers shown

1.

Givens, C., I. Ryan, P. Chenette, Carl M. Herbert, & Eldon D. Schriock. (2007). Outcomes of Natural Cycles vs. Programmed Cycles for 1390 Frozen Embryo Transfers. Fertility and Sterility. 87(4). S11–S11. 2 indexed citations

2.

Klatsky, Peter, et al.. (2006). The effect of fibroids without cavity involvement on ART outcomes independent of ovarian age. Human Reproduction. 22(2). 521–526. 59 indexed citations

3.

Çayan, Selahi̇tti̇n, et al.. (2001). A comparison of ICSI outcomes with fresh and cryopreserved epididymal spermatozoa from the same couples. Human Reproduction. 16(3). 495–499. 43 indexed citations

4.

Lebovic, Dan I., Jan L. Shifren, I. Ryan, et al.. (2000). Ovarian steroid and cytokine modulation of human endometrial angiogenesis. Human Reproduction. 15(suppl 3). 67–77. 90 indexed citations

5.

Shifren, Jan L., Jennifer F. Tseng, Charles Zaloudek, et al.. (1996). Ovarian steroid regulation of vascular endothelial growth factor in the human endometrium: implications for angiogenesis during the menstrual cycle and in the pathogenesis of endometriosis.. The Journal of Clinical Endocrinology & Metabolism. 81(8). 3112–3118. 544 indexed citations breakdown →

6.

Tseng, Jennifer F., I. Ryan, James T. Murai, et al.. (1996). Interleukin-6 secretion in vitro is up-regulated in ectopic and eutopic endometrial stromal cells from women with endometriosis.. The Journal of Clinical Endocrinology & Metabolism. 81(3). 1118–1122. 232 indexed citations

7.

Ryan, I.. (1996). Rantes chemokine expression is up-regulated in stromal cells cultured from human endometriosis tissues.. Journal of the Society for Gynecologic Investigation. 3(2). 74A–74A. 4 indexed citations

8.

Ryan, I., Eldon D. Schriock, & Robert N. Taylor. (1994). Isolation, characterization, and comparison of human endometrial and endometriosis cells in vitro.. The Journal of Clinical Endocrinology & Metabolism. 78(3). 642–649. 230 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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