James J. Walker

15.1k total citations · 2 hit papers
231 papers, 9.9k citations indexed

About

James J. Walker is a scholar working on Obstetrics and Gynecology, Pediatrics, Perinatology and Child Health and Public Health, Environmental and Occupational Health. According to data from OpenAlex, James J. Walker has authored 231 papers receiving a total of 9.9k indexed citations (citations by other indexed papers that have themselves been cited), including 133 papers in Obstetrics and Gynecology, 88 papers in Pediatrics, Perinatology and Child Health and 53 papers in Public Health, Environmental and Occupational Health. Recurrent topics in James J. Walker's work include Pregnancy and preeclampsia studies (95 papers), Birth, Development, and Health (47 papers) and Gestational Diabetes Research and Management (32 papers). James J. Walker is often cited by papers focused on Pregnancy and preeclampsia studies (95 papers), Birth, Development, and Health (47 papers) and Gestational Diabetes Research and Management (32 papers). James J. Walker collaborates with scholars based in United Kingdom, Australia and New Zealand. James J. Walker's co-authors include Rhoda Wilson, Mary Carrington, Susan E. Hiby, Ashley Moffett, Kevin M. O’Shaughnessy, John Trowsdale, Christopher W.G. Redman, Lucilla Poston, Lesley McCowan and Louise C. Kenny and has published in prestigious journals such as The Lancet, Circulation and Journal of Clinical Investigation.

In The Last Decade

James J. Walker

222 papers receiving 9.5k 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.

Combinations of Maternal KIR and Fetal HLA-C Genes Influence the Risk of Preeclampsia and Reproductive Success

2004 849 citations Susan E. Hiby, James J. Walker et al. The Journal of Experimental Medicine profile →
Trends in postpartum hemorrhage in high resource countries: a review and recommendations from the International Postpartum Hemorrhage Collaborative Group

2009 518 citations Marian Knight, William M. Callaghan et al. profile →

Peers

Countries citing papers authored by James J. Walker

Since Specialization

Citations

This map shows the geographic impact of James J. 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 J. 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 J. Walker more than expected).

Fields of papers citing papers by James J. Walker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James J. Walker

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Placental blood flow sensing and regulation in fetal growth restriction 2021 ·Placenta ·Lara Morley, Marjolaine Debant, James J. Walker, David J. Beech, Nigel Simpson	27
2	The deleterious effects of cannabis during pregnancy on neonatal outcomes 2020 ·The Medical Journal of Australia ·Luke E. Grzeskowiak, Jessica A. Grieger, Prabha H. Andraweera, Emma Knight, Shalem Leemaqz, Lucilla Poston, Lesley McCowan, Louise C. Kenny, Jenny Myers, James J. Walker, Gustaaf Dekker, Claire T. Roberts	36
3	Sex- and growth-specific characteristics of small for gestational age infants: a prospective cohort study 2020 ·Biology of Sex Differences ·(unknown), Petra E. Verburg, Shalem Leemaqz, Lesley McCowan, Lucilla Poston, Louise C. Kenny, Jenny Myers, James J. Walker, Gustaaf Dekker, Claire T. Roberts	11
4	Pre-pregnancy fast food and fruit intake is associated with time to pregnancy 2018 ·Human Reproduction ·Jessica A. Grieger, Luke E. Grzeskowiak, Tina Bianco‐Miotto, Tanja Jankovic‐Karasoulos, Lisa Moran, Rebecca L. Wilson, Shalem Leemaqz, Lucilla Poston, Lesley McCowan, Louise C. Kenny, Jenny Myers, James J. Walker, Robert J. Norman, Gus Dekker, Claire T. Roberts	44
5	Impaired neonatal outcomes following maternal marijuana use during pregnancy: evidence from the international SCOPE study 2018 ·Reproductive Toxicology ·Luke E. Grzeskowiak, Prabha H. Andraweera, Shalem Leemaqz, Lucilla Poston, Lesley McCowan, Louise C. Kenny, Jenny Myers, James J. Walker, Gus Dekker, Claire T. Roberts	0
6	Metabolic syndrome in pregnancy and risk for adverse pregnancy outcomes: A prospective cohort of nulliparous women 2018 ·PLoS Medicine ·Jessica A. Grieger, Tina Bianco‐Miotto, Luke E. Grzeskowiak, Shalem Leemaqz, Lucilla Poston, Lesley McCowan, Louise C. Kenny, Jenny Myers, James J. Walker, Gus Dekker, Claire T. Roberts	119
7	Planned home birth 2017 ·Best Practice & Research Clinical Obstetrics & Gynaecology ·James J. Walker	14
8	Pregnancy Loss Managed by Cervical Dilatation and Curettage Increases the Risk of Spontaneous Preterm Birth 2014 ·Obstetrical & Gynecological Survey ·Fergus P. McCarthy, Ali S. Khashan, Robyn A. North, (unknown), James J. Walker, Philip N. Baker, Gus Dekker, Lucilla Poston, Lesley McCowan, Keelin O’Donoghue, Louise C. Kenny	1
9	Objective and subjective in vivo comparison of two emollient products 2012 ·Clinical Cosmetic and Investigational Dermatology ·(unknown), (unknown), James J. Walker, Hart	6
10	Trends in Postpartum Hemorrhage in High Resource Countries: A Review and Recommendations From the International Postpartum Hemorrhage Collaborative Group 2010 ·Obstetrical & Gynecological Survey ·Marian Knight, William M. Callaghan, Cynthia J. Berg, Sophie Alexander, Marie‐Hélène Bouvier‐Colle, Jane B. Ford, K.S. Joseph, Gwyneth Lewis, Robert M. Liston, Christine L. Roberts, Jeremy Oats, James J. Walker	11
11	Maternal activating KIRs protect against human reproductive failure mediated by fetal HLA-C2 2010 ·Journal of Clinical Investigation ·Susan E. Hiby, Richard Apps, Andrew Sharkey, Lydia Farrell, Lucy Gardner, Arend Mulder, Frans H.J. Claas, James J. Walker, (unknown), (unknown), Clare Tower, Lesley Regan, (unknown), Mary Carrington, Ashley Moffett	388
12	The pre-eclampsia community guideline (PRECOG): how to screen for and detect onset of pre-eclampsia in the community 2005 ·BMJ ·Fiona Milne, C.W.G. Redman, James J. Walker, Philip N. Baker, (unknown), Carol Cooper, Michael de Swiet, Gillian Fletcher, Mervi Jokinen, Deirdre J. Murphy, Catherine Nelson‐Piercy, (unknown), Stephen C. Robson, Andrew Shennan, (unknown), Sara Twaddle, Jason Waugh	217
13	Combinations of Maternal KIR and Fetal HLA-C Genes Influence the Risk of Preeclampsia and Reproductive Success breakdown → 2004 ·The Journal of Experimental Medicine ·Susan E. Hiby, James J. Walker, Kevin M. O’Shaughnessy, Christopher W.G. Redman, Mary Carrington, John Trowsdale, Ashley Moffett	849
14	HELLP syndrome 2003 ·The Obstetrician & Gynaecologist ·(unknown), James J. Walker	3
15	Randomised clinical trials of fish oil supplementation in high risk pregnancies 2000 ·BJOG An International Journal of Obstetrics & Gynaecology ·Sjúrđur F. Olsen, Niels J. Secher, Ann Tabor, Tom Weber, James J. Walker, Christian Gluud	262
16	Early pregnancy assessment units. 1999 ·PubMed ·(unknown), James J. Walker	16
17	Screening of drugs for rapid activity against Trypanosoma cruzi trypomastigotes in vitro. 1988 ·PubMed ·(unknown), James J. Walker, (unknown)	18
18	Reduced Prostacyclin Production by Umbilical Arteries from Pregnancy Complicated by Severe Pregnancy Induced Hypertension 1987 ·M. McLaren, Ian A. Greer, James J. Walker, C.D. Forbes	7
19	Platelet studies in normal pregnancy and pregnancy-induced hypertension 1986 ·Clinical & Laboratory Haematology ·Charles R.J. Singer, James J. Walker, Alexander D. Cameron, Carol Fraser	16
20	Indomethacin--aspirin interaction: a clinical appraisal. 1975 ·BMJ ·Peter Brooks, James J. Walker, M. Anne Bell, W. Watson Buchanan, (unknown)	40

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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