I. Gerhard

2.7k total citations
94 papers, 1.5k citations indexed

About

I. Gerhard is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Immunology. According to data from OpenAlex, I. Gerhard has authored 94 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Reproductive Medicine, 29 papers in Public Health, Environmental and Occupational Health and 17 papers in Immunology. Recurrent topics in I. Gerhard's work include Ovarian function and disorders (18 papers), Reproductive Biology and Fertility (12 papers) and Reproductive System and Pregnancy (12 papers). I. Gerhard is often cited by papers focused on Ovarian function and disorders (18 papers), Reproductive Biology and Fertility (12 papers) and Reproductive System and Pregnancy (12 papers). I. Gerhard collaborates with scholars based in Germany, United States and Croatia. I. Gerhard's co-authors include B. Runnebaum, W. Eggert‐Kruse, B. Monga, Wolfgang Tilgen, K. Klinga, Klaus Freivogel, G. Bastert, Volker Daniel, Tamara Becker and E. J Wallis and has published in prestigious journals such as Environmental Health Perspectives, American Journal of Obstetrics and Gynecology and International Journal of Obesity.

In The Last Decade

I. Gerhard

85 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
I. Gerhard Germany 23 602 476 289 219 202 94 1.5k
Juliana W. Meadows United States 18 443 0.7× 411 0.9× 158 0.5× 174 0.8× 62 0.3× 31 1.2k
Robert J. Stillman United States 25 1.3k 2.1× 1.2k 2.5× 280 1.0× 775 3.5× 236 1.2× 65 2.7k
Steve N. London United States 20 307 0.5× 462 1.0× 104 0.4× 195 0.9× 107 0.5× 38 1.1k
Fady I. Sharara United States 25 1.2k 2.0× 891 1.9× 155 0.5× 507 2.3× 288 1.4× 79 1.8k
Nan Birgitte Oldereid Norway 22 1.2k 2.0× 731 1.5× 155 0.5× 842 3.8× 157 0.8× 41 2.0k
Jørn Olsen Denmark 19 1.1k 1.9× 691 1.5× 261 0.9× 409 1.9× 31 0.2× 27 1.9k
N.R. Kendall United Kingdom 22 488 0.8× 502 1.1× 67 0.2× 262 1.2× 145 0.7× 62 1.8k
Diane L. Wright United States 25 1.2k 1.9× 910 1.9× 797 2.8× 767 3.5× 123 0.6× 45 2.6k
Alexander E. Omu Kuwait 24 911 1.5× 824 1.7× 172 0.6× 396 1.8× 794 3.9× 91 2.2k
Rong Tang China 19 406 0.7× 331 0.7× 220 0.8× 188 0.9× 116 0.6× 50 1.1k

Countries citing papers authored by I. Gerhard

Since Specialization
Citations

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

Fields of papers citing papers by I. Gerhard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of I. Gerhard. A scholar is included among the top collaborators of I. Gerhard 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. Gerhard. I. Gerhard 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.
Gerhard, I., et al.. (1997). Homöopathie versus konventionelle Therapie bei weiblicher Unfruchtbarkeit: Zwischenbericht einer randomisierten Studie. Complementary Medicine Research. 4(5). 262–269. 5 indexed citations
2.
Lüdtke, Rainer, et al.. (1997). Methodische Uberlegungen zum Wirksamkeitsnachweis der homöopathischen Einzelmittelbehandlung von Zyklusstörungen. Complementary Medicine Research. 4(1). 28–32. 2 indexed citations
3.
Gerhard, I., et al.. (1993). Immunologische Veränderungen bei Frauen mit hormonellen Störungen und chronischer Pentachlorphenol(PCP)-Belastung. Archives of Gynecology and Obstetrics. 254(1-4). 273–275.
4.
Wittmann, G., I. Gerhard, & B. Runnebaum. (1993). Wirksamkeit eines Arzneimittels auf Basis pfanzlicher Extrakte Mastodynon-NR bei weiblicher Infertilität. Archives of Gynecology and Obstetrics. 254(1-4). 158–160. 2 indexed citations
5.
Gerhard, I., et al.. (1993). Umwelttoxikologische Belastungen bei Frauen mit Uterusmyomen und/oder Endometriose. Archives of Gynecology and Obstetrics. 254(1-4). 588–590.
6.
Gerhard, I., et al.. (1993). Immunologische Störungen bei Frauen mit habituellen Aborten. Archives of Gynecology and Obstetrics. 254(1-4). 1286–1288. 1 indexed citations
7.
Gerhard, I.. (1993). Akupunktur bei weiblichen Fertilitätsstörungen. Archives of Gynecology and Obstetrics. 254(1-4). 566–572. 1 indexed citations
8.
Gerhard, I., et al.. (1993). Chlorkohlenwasserstoff (CKW)- und Schwermetallbelastung bei Frauen mit Abortanamnese. Archives of Gynecology and Obstetrics. 254(1-4). 1294–1296.
9.
Gerhard, I., et al.. (1993). Veränderungen des Spermiogramms und des Hormonstatus bei infertilen Männern durch Akupunktur. Archives of Gynecology and Obstetrics. 254(1-4). 222–224. 1 indexed citations
10.
Gerhard, I., et al.. (1993). Fertilitätsstörungen von Frauen in Abhängigkeit von Schadstoffkonzentrationen in Blut und Urin. Archives of Gynecology and Obstetrics. 254(1-4). 261–263.
11.
Eggert‐Kruse, W., et al.. (1992). [Local and systemic humoral immune response to protein I of Neisseria gonorrhoeae].. PubMed. 43(6). 352–8. 1 indexed citations
12.
Gerhard, I., et al.. (1992). Clinical data which influence semen parameters in infertile men. Human Reproduction. 7(6). 830–837. 31 indexed citations
13.
Eggert‐Kruse, W., I. Gerhard, Wolfgang Tilgen, & B. Runnebaum. (1990). The use of hens' egg white as a substitute for human cervical mucus in assessing human infertility. International Journal of Andrology. 13(4). 258–266. 7 indexed citations
14.
Eggert‐Kruse, W., I. Gerhard, H. Näher, Wolfgang Tilgen, & B. Runnebaum. (1990). Chlamydial infection—a female and/or male infertility factor?. Fertility and Sterility. 53(6). 1037–1043. 52 indexed citations
15.
Gerhard, I., Bruce J. Roth, W. Eggert‐Kruse, & B. Runnebaum. (1990). Effects of Kallikrein on Sperm Motility, Capillary Tube Test, and Pregnancy Rate in an Aih Program. Archives of Andrology. 24(2). 129–145. 7 indexed citations
16.
Gerhard, I., et al.. (1989). Prävalenz ätiologischer Faktoren bei 121 Paaren mit habituellen Aborten. Archives of Gynecology and Obstetrics. 245(1-4). 166–167. 1 indexed citations
17.
Eggert‐Kruse, W., et al.. (1989). Circulating antisperm antibodies and fertility prognosis: a prospective study*. Human Reproduction. 4(5). 513–520. 39 indexed citations
18.
Eggert‐Kruse, W., et al.. (1988). Effects of antimicrobial therapy on sperm-mucus interaction*. Human Reproduction. 3(7). 861–869. 16 indexed citations
19.
Gerhard, I., Brigitte Vollmar, B. Runnebaum, & F. Kubli. (1987). Weight percentile at birth. I. Clinical data of pregnancy and relevance for early childhood development. European Journal of Obstetrics & Gynecology and Reproductive Biology. 26(4). 303–311. 5 indexed citations
20.
Gerhard, I. & B. Runnebaum. (1979). Comparison between tamoxifen and clomiphene therapy in women with anovulation. Archives of Gynecology and Obstetrics. 227(4). 279–288. 28 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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