John F. O’Connor

6.2k citations

90 papers · 4.6k indexed · 2 hit papers · h-index 29

Public Health, Environmental and Occupational Health top 1%
Pediatrics, Perinatology and Child Health top 0.5%
Immunology top 5%
Reproductive Medicine top 0.5%
Obstetrics and Gynecology top 0.5%

Co-authors: John P. Schlatterer Robert E. Canfield Allen J. Wilcox BRUCE C. NISULA Eileen Armstrong Clarice R. Weinberg Donna D. Baird Steven Birken
Topics: Hypothalamic control of reproductive hormones (10 papers)Estrogen and related hormone effects (7 papers)Pediatric Urology and Nephrology Studies (7 papers)
Cited by: Reproductive Medicine Obstetrics and Gynecology Pediatrics, Perinatology and Child Health
Journals: Science New England Journal of Medicine Journal of Clinical Oncology
Partner nations: United States Canada United Kingdom

In The Last Decade

John F. O’Connor

82 papers receiving 4.3k 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.

Incidence of Early Loss of Pregnancy

1988 1.7k citations Allen J. Wilcox, Clarice R. Weinberg et al. New England Journal of Medicine profile →
Estimates of human fertility and pregnancy loss

1996 430 citations Michael J. Zinaman, E. D. Clegg et al. Fertility and Sterility profile →

Peers

Countries citing papers authored by John F. O’Connor

Since Specialization

Citations

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

Fields of papers citing papers by John F. O’Connor

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John F. O’Connor. 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 John F. O’Connor. The network helps show where John F. O’Connor may publish in the future.

Co-authorship network of co-authors of John F. O’Connor

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Statistics and the Military Deference Doctrine: a Response to Professor Lichtman 2007 ·Maryland law review ·John F. O’Connor	0
2	Hyperglycosylated HCG expression in pregnancy: Cellular origin and clinical applications 2006 ·Molecular and Cellular Endocrinology ·Galina Kovalevskaya,Tetsuya Kakuma,John P. Schlatterer,John F. O’Connor	22
3	Intact HCG, free HCG β subunit and HCG β core fragment: longitudinal patterns in urine during early pregnancy 2005 ·Human Reproduction ·Ruth McChesney,Allen J. Wilcox,John F. O’Connor,Clarice R. Weinberg,Donna D. Baird,John P. Schlatterer,D. Robert McConnaughey,Steven Birken,Robert E. Canfield	44
4	Myocardial injury, neurohormonal activation and inflammation after internal atrial defibrillation 2004 ·International Journal of Cardiology ·(unknown),Andrew R.J. Mitchell,John F. O’Connor,Neil Sulke	3
5	Insurance Coverage Settlements and the Rights of Excess Insurers 2003 ·Maryland law review ·John F. O’Connor	0
6	Differential urinary gonadotrophin profiles in early pregnancy and early pregnancy loss 1998 ·Prenatal Diagnosis ·John F. O’Connor,Nancy J. Ellish,Tatsu Kakuma,John P. Schlatterer,Galina Kovalevskaya	69
7	The expression of the urinary forms of human luteinizing hormone beta fragment in various populations as assessed by a specific immunoradiometric assay 1998 ·Human Reproduction ·John F. O’Connor,Galina Kovalevskaya,Steven Birken,John P. Schlatterer,(unknown),Don McMahon,R E Canfield	22
8	Detecting pre-ovulatory luteinizing hormone surges in urine 1998 ·Human Reproduction ·James S. Kesner,Edwin A. Knecht,(unknown),Allen J. Wilcox,John F. O’Connor	32
9	Plasma leptin is partly cleared by the kidney and is elevated in hemodialysis patients 1997 ·Kidney International ·Kumar Sharma,Robert V. Considine,Beckie Michael,Stephen Dunn,Lawrence S. Weisberg,Brenda R.C. Kurnik,Peter B. Kurnik,John F. O’Connor,Madhur K. Sinha,(unknown)	201
10	Estimates of human fertility and pregnancy lossbreakdown → 1996 ·Fertility and Sterility ·Michael J. Zinaman,E. D. Clegg,Charles Brown,John F. O’Connor,Sherry G. Selevan	430
11	The Emoluments Clause: An Anti-Federalist Intruder in a Federalist Constitution 1995 ·Hofstra law review ·John F. O’Connor	0
12	The rise and fall of a radiologic technique. 1995 ·American Journal of Roentgenology ·N T Griscom,John F. O’Connor	1
13	Recent Advances in the Chemistry and Immunochemistry of Human Chorionic Gonadotropin: Impact on Clinical Measurements* 1994 ·Endocrine Reviews ·John F. O’Connor,Steven Birken,Joyce W. Lustbader,Alexander Krichevsky,Yi Chen,Robert E. Canfield	64
14	Unilateral acquired renal cystic diseas and neoplasia in a patient with renal artery stenosis 1993 ·Urology ·Christine A. Sinsky,Philip J. Dahlberg,John F. O’Connor	1
15	Prospective assessment of early fetal loss using an immunoenzymometric screening assay for detection of urinary human chorionic gonadotropin 1992 ·Fertility and Sterility ·Clinton A. Taylor,James W. Overstreet,Steven J. Samuels,Stephen P. Boyers,Robert E. Canfield,John F. O’Connor,Frederick W. Hanson,Bill L. Lasley	15
16	Incidence of Early Loss of Pregnancybreakdown → 1988 ·New England Journal of Medicine ·Allen J. Wilcox,Clarice R. Weinberg,John F. O’Connor,Donna D. Baird,John P. Schlatterer,Robert E. Canfield,Eileen Armstrong,BRUCE C. NISULA	1716
17	Development of an assay for a biomarker of pregnancy and early fetal loss. 1987 ·Environmental Health Perspectives ·R E Canfield,John F. O’Connor,Steven Birken,Alexander Krichevsky,Allen J. Wilcox	36
18	Multiple genitourinary abnormalities in females with unilateral renal agenesis: Three cases 1979 ·Journal of Pediatric Surgery ·Neil R. Feins,John F. O’Connor	3
19	Plasma hormone profiles of young women at risk for familial breast cancer. 1978 ·Munich Personal RePEc Archive (Ludwig Maximilian University of Munich) ·Jack Fishman,David K. Fukushima,John F. O’Connor,Robert Rosenfeld,Henry T. Lynch,Jane F. Lynch,Hoda A. Guirgis,Kathleen Maloney	33
20	Radiology and Pediatrics 1974 ·Pediatric Clinics of North America ·John F. O’Connor	1

About John F. O’Connor

John F. O’Connor is a scholar working on Reproductive Medicine, Obstetrics and Gynecology and Pediatrics, Perinatology and Child Health, having authored 90 papers that have together received 4.6k indexed citations. Recurring topics across this work include Hypothalamic control of reproductive hormones (10 papers), Estrogen and related hormone effects (7 papers) and Pediatric Urology and Nephrology Studies (7 papers). The work is most often cited by research in Reproductive Medicine (862 citations), Obstetrics and Gynecology (772 citations) and Pediatrics, Perinatology and Child Health (1.1k citations). John F. O’Connor has collaborated with scholars based in United States, Canada and United Kingdom. Frequent co-authors include John P. Schlatterer, Robert E. Canfield, Allen J. Wilcox, BRUCE C. NISULA, Eileen Armstrong, Clarice R. Weinberg, Donna D. Baird, Steven Birken, E. D. Clegg and Michael J. Zinaman. Their work appears in journals such as Science, New England Journal of Medicine and Journal of Clinical Oncology.

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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