J. Spona

1.9k citations
127 papers · 1.5k · h-index 21

Impact in

    • Ovarian function and disorders
    • Hypothalamic control of reproductive hormones
    • Ovarian cancer diagnosis and treatment
  • Equine top 5%

Papers in

J. Spona

122 papers receiving 1.4k citations

Peers

J. Spona
Comparison fields: 5 of 109
  • Reproductive Medicine 413
  • Equine 35
  • Cancer Research 202
  • Endocrinology, Diabetes and Metabolism 217
  • Oncology 313
Replace J. Poortman with:
J. Poortman Netherlands
A. Ederveen Netherlands
M. Breckwoldt Germany
María Susana Theas Argentina
P. O. Janson Sweden
Gabriela Surdulescu United Kingdom
Graeme R. Frank United States
Clare D. Edman United States
Margarita Vega Chile
Satish Batra Sweden
J. Spona relative to J. Poortman Netherlands J. Poortman's profile →
Citations per field
00.5×1.5×2.1×
J. Poortman · 1×
Citations per year

Countries citing papers authored by J. Spona

Since Specialization
Citations

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

Fields of papers citing papers by J. Spona

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside J. Spona, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. Spona Line = papers co-authored together J. Spona links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 127 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Immunocytochemical localization of estrogen and progesterone receptor and prognosis in human primary breast cancer.
1990163
2
Estrogen receptor analysis on biopsies and fine-needle aspirates from human breast carcinoma. Correlation of biochemical and immunohistochemical methods using monoclonal antireceptor antibodies.
198664
3 199659
4 198955
5 199352
6 199447
7
Determination of HER-2/neu amplification and expression in tumor tissue and cultured cells using a simple, phenol free method for nucleic acid isolation.
199040
8 198533
9
Solid and cystic tumour of the pancreas; a hormonal-dependent neoplasm?
198833
10 198630
11
Fertility, pregnancies and offspring complications after bone marrow transplantation.
199129
12 197528
13 199325
14 198825
15 197325
16 199723
17 197923
18 198821
19 200621
20 197321

About J. Spona

J. Spona is a scholar working on Reproductive Medicine, Endocrinology, Diabetes and Metabolism, Molecular Biology, Public Health, Environmental and Occupational Health and Genetics, having authored 127 papers that have together received 1.5k indexed citations. Recurring topics across this work include Ovarian function and disorders (21 papers), Growth Hormone and Insulin-like Growth Factors (18 papers), Estrogen and related hormone effects (17 papers), Hypothalamic control of reproductive hormones (10 papers), Reproductive Health and Contraception (8 papers), HER2/EGFR in Cancer Research (7 papers), Hormonal and reproductive studies (7 papers) and Ovarian cancer diagnosis and treatment (6 papers). The work is most often cited by research in Reproductive Medicine (413 citations), Equine (35 citations), Cancer Research (202 citations), Endocrinology, Diabetes and Metabolism (217 citations) and Oncology (313 citations). J. Spona has collaborated with scholars based in Austria, Germany and United States. Frequent co-authors include M. Schemper, G. Reiner, R. Jakesz, Angelika Reiner, Jolanta B. Schmidt, Wilfried Feichtinger, P. Sevelda, Robert Zeillinger, Ch. Bieglmayer and R. Kolb. Their work appears in journals such as FEBS Letters, Gynecologic and Obstetric Investigation, Contraception, Acta Obstetricia Et Gynecologica Scandinavica and Journal of Animal Physiology and Animal Nutrition.

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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