Arnold Klopper

3.3k citations
151 papers · 2.4k · 1 hit paper · h-index 27

Impact in

Papers in

Arnold Klopper

141 papers receiving 2.1k citations

Arnold Klopper's Hit Papers

A METHOD FOR THE DETERMINATION OF URINARY PREGNANEDIOL 1955 · 336 citations
3360+23+47Years since publication100200300

Peers

Arnold Klopper
Comparison fields: 5 of 119
  • Obstetrics and Gynecology 575
  • Reproductive Medicine 410
  • Pediatrics, Perinatology and Child Health 569
  • Public Health, Environmental and Occupational Health 468
  • Endocrinology, Diabetes and Metabolism 259
Replace Stig Kullander with:
Stig Kullander Sweden
N. Wiqvist Sweden
Adolf E. Schindler Germany
Alan A. Arslan United States
T. Lind United Kingdom
Norman F. Gant United States
Craig A. Winkel United States
Rhoda Wilson United Kingdom
Karen L. Koenig United States
Jean Guibourdenche France
Arnold Klopper relative to Stig Kullander Sweden Stig Kullander's profile →
Citations per field
00.5×1.6×
Stig Kullander · 1×
Citations per year

Countries citing papers authored by Arnold Klopper

Since Specialization
Citations

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

Fields of papers citing papers by Arnold Klopper

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Arnold Klopper, 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 Arnold Klopper Line = papers co-authored together Arnold Klopper links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 151 papers — load more, or switch the sort, to bring in the rest.

#Work
1
A METHOD FOR THE DETERMINATION OF URINARY PREGNANEDIOL
Hit paper breakdown →
1955336
2 197193
3 197687
4 196387
5 196866
6 195865
7
Endocrinology of pregnancy
198361
8 197855
9 198755
10 197548
11
Plasma hormone assays in evaluation of fetal wellbeing
197647
12 195145
13
The Human placenta : proteins and hormones
198040
14 196540
15 197939
16 198039
17 198035
18 198234
19
Foetus and placenta
196933
20 196433

About Arnold Klopper

Arnold Klopper is a scholar working on Obstetrics and Gynecology, Pediatrics, Perinatology and Child Health, Public Health, Environmental and Occupational Health, Hematology and Genetics, having authored 151 papers that have together received 2.4k indexed citations. Recurring topics across this work include Pregnancy and preeclampsia studies (25 papers), Birth, Development, and Health (15 papers), Reproductive System and Pregnancy (11 papers), Iron Metabolism and Disorders (9 papers), Estrogen and related hormone effects (8 papers), Gestational Diabetes Research and Management (7 papers), Maternal and fetal healthcare (7 papers) and Maternal and Perinatal Health Interventions (6 papers). The work is most often cited by research in Obstetrics and Gynecology (575 citations), Reproductive Medicine (410 citations), Pediatrics, Perinatology and Child Health (569 citations), Public Health, Environmental and Occupational Health (468 citations) and Endocrinology, Diabetes and Metabolism (259 citations). Arnold Klopper has collaborated with scholars based in United Kingdom, Egypt and United States. Frequent co-authors include J. B. Brown, Eileen A. Michie, George R. Wilson, W. Z. Billewicz, Mamdouh M. Shaaban, Graeme J. Hughes, P. Bischof, Fritz Fuchs, M. C. Macnaughton and J. A. Loraine. Their work appears in journals such as BJOG An International Journal of Obstetrics & Gynaecology, Archives of Gynecology and Obstetrics, The Lancet, Journal of Endocrinology and Obstetrical & Gynecological Survey.

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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