James Johnston Walker

15.3k citations
261 papers · 12.1k · 4 hit papers · h-index 51

Impact in

Papers in

James Johnston Walker

252 papers receiving 11.4k citations

James Johnston Walker's Hit Papers

Clinical risk prediction for pre-eclampsia in nulliparous women: development of model in international prospective cohort 2011 · 352 citations
3520+7+14Years since publication250500750

Peers

James Johnston Walker
Comparison fields: 5 of 172
  • Obstetrics and Gynecology 5.8k
  • Pediatrics, Perinatology and Child Health 3.6k
  • Immunology 2.4k
  • Reproductive Medicine 752
  • Public Health, Environmental and Occupational Health 1.8k
Replace Stephen Courtenay Robson with:
Stephen Courtenay Robson United Kingdom
Euan Morrison Wallace Australia
Gary D.V. Hankins United States
Catherine Williamson United Kingdom
Moshe Hod Israel
Roland Devlieger Belgium
Chiara Benedetto Italy
Gian Carlo Di Renzo Italy
Patrick Michael Catalano United States
Mark Ashley Brown Australia
James Johnston Walker relative to Stephen Courtenay Robson United Kingdom Stephen Courtenay Robson's profile →
Citations per field
00.5×1.5×
Stephen Courtenay Robson · 1×
Citations per year

Countries citing papers authored by James Johnston Walker

Since Specialization
Citations

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

Fields of papers citing papers by James Johnston Walker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James Johnston Walker. 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 James Johnston Walker. The network helps show where James Johnston Walker may publish in the future.

Co-authors

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

All Works

20 of 20 papers shown

Showing the 20 most-cited of 261 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Combinations of Maternal KIR and Fetal HLA-C Genes Influence the Risk of Preeclampsia and Reproductive Success
Hit paper breakdown →
2004935
2
Trends in postpartum hemorrhage in high resource countries: a review and recommendations from the International Postpartum Hemorrhage Collaborative Group
Hit paper breakdown →
2009550
3 2000468
4
Prediction of adverse maternal outcomes in pre-eclampsia: development and validation of the fullPIERS model
Hit paper breakdown →
2010434
5 2010428
6
Clinical risk prediction for pre-eclampsia in nulliparous women: development of model in international prospective cohort
Hit paper breakdown →
2011352
7 2000298
8
Vascular endothelial growth factor (VEGF) in breast cancer: comparison of plasma, serum, and tissue VEGF and microvessel density and effects of tamoxifen.
2000293
9 2005246
10 1990244
11 1991205
12 1998203
13 2014190
14 2017186
15 1982185
16 1999176
17 2001171
18 2000161
19 1991148
20 1996144

About James Johnston Walker

James Johnston Walker is a scholar working on Obstetrics and Gynecology, Pediatrics, Perinatology and Child Health, Public Health, Environmental and Occupational Health, Immunology and Cardiology and Cardiovascular Medicine, having authored 261 papers that have together received 12.1k indexed citations. Recurring topics across this work include Pregnancy and preeclampsia studies (94 papers), Birth, Development, and Health (35 papers), Reproductive System and Pregnancy (25 papers), Gestational Diabetes Research and Management (25 papers), Pregnancy and Medication Impact (24 papers), Maternal and fetal healthcare (17 papers), Maternal and Perinatal Health Interventions (17 papers) and Preterm Birth and Chorioamnionitis (12 papers). The work is most often cited by research in Obstetrics and Gynecology (5.8k citations), Pediatrics, Perinatology and Child Health (3.6k citations), Immunology (2.4k citations), Reproductive Medicine (752 citations) and Public Health, Environmental and Occupational Health (1.8k citations). James Johnston Walker has collaborated with scholars based in United Kingdom, Australia and New Zealand. Frequent co-authors include Rhoda Wilson, Ashley Moffett, Susan E. Hiby, Mary N Carrington, John Trowsdale, Christopher W.G. Redman, Kevin M. O’Shaughnessy, Louise C. Kenny, Lucilla Poston and Lesley M. E. McCowan. Their work appears in journals such as BJOG An International Journal of Obstetrics & Gynaecology, American Journal of Obstetrics and Gynecology, European Journal of Obstetrics & Gynecology and Reproductive Biology, The Lancet 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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