Peter C. O’Brien

55.1k citations
446 papers · 45.2k · 15 hit papers · h-index 110

Impact in

Papers in

Peter C. O’Brien

437 papers receiving 42k citations

Peter C. O’Brien's Hit Papers

GWAS and meta-analysis identifies 49 genetic variants underlying critical COVID-19 2023 · 125 citations
1250+15+31Years since publication5001k1.5k2k2.5k

Peers

Peter C. O’Brien
Comparison fields: 5 of 206
  • Psychiatry and Mental health 10.7k
  • Neurology 6.5k
  • Physiology 6k
  • Statistics and Probability 2.4k
  • Pathology and Forensic Medicine 3.2k
Replace Philip A. Wolf with:
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Peter C. O’Brien relative to Philip A. Wolf United States Philip A. Wolf's profile →
Citations per field
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Citations per year

Countries citing papers authored by Peter C. O’Brien

Since Specialization
Citations

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

Fields of papers citing papers by Peter C. O’Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Peter C. O’Brien. 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 Peter C. O’Brien. The network helps show where Peter C. O’Brien may publish in the future.

Co-authors

The 25 scholars most cited alongside Peter C. O’Brien, 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 Peter C. O’Brien Line = papers co-authored together Peter C. O’Brien links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 446 papers — load more, or switch the sort, to bring in the rest.

#Work
1
A Multiple Testing Procedure for Clinical Trials
Hit paper breakdown →
19792567
2
The clinical course of neuromyelitis optica (Devic’s syndrome)
Hit paper breakdown →
19991528
3
Prediction of AD with MRI-based hippocampal volume in mild cognitive impairment
Hit paper breakdown →
19991204
4
Medial temporal atrophy on MRI in normal aging and very mild Alzheimer's disease
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1997944
5 1984912
6
Increased Risk of Type 2 Diabetes in Alzheimer Disease
Hit paper breakdown →
2004819
7
Rates of hippocampal atrophy correlate with change in clinical status in aging and AD
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2000765
8
MR‐based hippocampal volumetry in the diagnosis of Alzheimer's disease
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1992754
9
A randomized trial of plasma exchange in acute central nervous system inflammatory demyelinating disease
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1999703
10
Comparison of different MRI brain atrophy rate measures with clinical disease progression in AD
Hit paper breakdown →
2004694
11
Functioning Insulinoma—Incidence, Recurrence, and Long-Term Survival of Patients: A 60-Year Study
Hit paper breakdown →
1991676
12
Mapping the human genetic architecture of COVID-19
Hit paper breakdown →
2021656
13
Risk of Dementia among Persons with Diabetes Mellitus: A Population-based Cohort Study
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1997607
14 1998542
15 2002501
16 2006479
17 2007452
18
Human diabetic endoneurial sorbitol, fructose, and myo‐inositol related to sural nerve morphometry
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1980440
19 2005424
20 1991415

About Peter C. O’Brien

Peter C. O’Brien is a scholar working on Neurology, Psychiatry and Mental health, Statistics and Probability, Radiology, Nuclear Medicine and Imaging and Physiology, having authored 446 papers that have together received 45.2k indexed citations. Recurring topics across this work include Peripheral Neuropathies and Disorders (43 papers), Dementia and Cognitive Impairment Research (39 papers), Pain Mechanisms and Treatments (34 papers), Peripheral Nerve Disorders (24 papers), Diabetes Management and Research (17 papers), Statistical Methods in Clinical Trials (17 papers), Advanced Radiotherapy Techniques (15 papers) and Lymphoma Diagnosis and Treatment (15 papers). The work is most often cited by research in Psychiatry and Mental health (10.7k citations), Neurology (6.5k citations), Physiology (6k citations), Statistics and Probability (2.4k citations) and Pathology and Forensic Medicine (3.2k citations). Peter C. O’Brien has collaborated with scholars based in United States, Australia and United Kingdom. Frequent co-authors include Thomas R. Fleming, Clifford R. Jack, Ronald Petersen, P. James B. Dyck, Eric G. Tangalos, Glenn E. Smith, Robert J. Ivnik, E. Kokmen, F. John Service and Bradley F. Boeve. Their work appears in journals such as Neurology, Mayo Clinic Proceedings, International Journal of Radiation Oncology*Biology*Physics, Diabetes Care and Radiotherapy and 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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