Michael J. O’Brien

24.9k total citations · 7 hit papers
216 papers, 18.1k citations indexed

About

Michael J. O’Brien is a scholar working on Oncology, Epidemiology and Surgery. According to data from OpenAlex, Michael J. O’Brien has authored 216 papers receiving a total of 18.1k indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Oncology, 44 papers in Epidemiology and 40 papers in Surgery. Recurrent topics in Michael J. O’Brien's work include Colorectal Cancer Screening and Detection (50 papers), Genetic factors in colorectal cancer (35 papers) and Gastric Cancer Management and Outcomes (29 papers). Michael J. O’Brien is often cited by papers focused on Colorectal Cancer Screening and Detection (50 papers), Genetic factors in colorectal cancer (35 papers) and Gastric Cancer Management and Outcomes (29 papers). Michael J. O’Brien collaborates with scholars based in United States, United Kingdom and Canada. Michael J. O’Brien's co-authors include Ann G. Zauber, Sidney J. Winawer, John H. Bond, Jerome D. Waye, Edward T. Stewart, Joel F. Panish, Melvin Schapiro, Leonard S. Gottlieb, Stephen S. Sternberg and Robert C. Kurtz and has published in prestigious journals such as New England Journal of Medicine, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Michael J. O’Brien

210 papers receiving 17.5k citations

Hit Papers

5 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.

Prevention of Colorectal Cancer by Colonoscopic Polypectomy

1993 3.4k citations Sidney J. Winawer, Ann G. Zauber et al. profile →
Colonoscopic Polypectomy and Long-Term Prevention of Colorectal-Cancer Deaths

2012 2.2k citations Ann G. Zauber, Sidney J. Winawer et al. profile →
Serrated Lesions of the Colorectum: Review and Recommendations From an Expert Panel

2012 778 citations Douglas K. Rex, Randall W. Burt et al. The American Journal of Gastroenterology profile →
Randomized Comparison of Surveillance Intervals after Colonoscopic Removal of Newly Diagnosed Adenomatous Polyps

1993 734 citations Sidney J. Winawer, Ann G. Zauber et al. profile →
The National Polyp Study

1990 613 citations Michael J. O’Brien, Sidney J. Winawer et al. Gastroenterology profile →
Guidelines for Colonoscopy Surveillance After Polypectomy: A Consensus Update by the US Multi-Society Task Force on Colorectal Cancer and the American Cancer Society

2006 551 citations Sidney J. Winawer, Ann G. Zauber et al. Gastroenterology profile →
The American Society for Gastrointestinal Endoscopy PIVI (Preservation and Incorporation of Valuable Endoscopic Innovations) on real-time endoscopic assessment of the histology of diminutive colorectal polyps

2011 421 citations Douglas K. Rex, Charles J. Kahi et al. profile →

Peers

Countries citing papers authored by Michael J. O’Brien

Since Specialization

Citations

This map shows the geographic impact of Michael J. 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 Michael J. 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 Michael J. O’Brien more than expected).

Fields of papers citing papers by Michael J. O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Michael J. O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Michael J. O’Brien. A scholar is included among the top collaborators of Michael J. O’Brien 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 Michael J. O’Brien. Michael J. O’Brien 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	Mass transfer in atmospheric water harvesting systems 2023 ·Chemical Engineering Science ·(unknown), Nikita Hanikel, Dennis J. Coyle, Mohammad I. Hossain, (unknown), Michael J. O’Brien, David B. Hall, J. B. Hastings, (unknown), (unknown), Silvio Neumann, David R. Moore, Omar M. Yaghi, T. Grant Glover	11
2	A model of longitudinal hemodynamic alterations after mild traumatic brain injury in adolescents 2019 ·SHILAP Revista de lepidopterología ·Corey M. Thibeault, Samuel Thorpe, (unknown), Michael J. O’Brien, Mina Ranjbaran, (unknown), Robert Hamilton	1
3	Proximal Aberrant Crypt Foci Associate with Synchronous Neoplasia and Are Primed for Neoplastic Progression 2017 ·Molecular Cancer Research ·David A. Drew, Allen Mo, James J. Grady, Richard G. Stevens, Joel B. Levine, Bruce M. Brenner, Joseph C. Anderson, Faripour Forouhar, Michael J. O’Brien, Thomas J. Devers, Daniel W. Rosenberg	9
4	Adenoma Prevalence in Blacks and Whites Having Equal Adherence To Screening Colonoscopy: The National Colonoscopy Study 2017 ·Clinical Gastroenterology and Hepatology ·Robin B. Mendelsohn, Sidney J. Winawer, (unknown), Glenn Mills, Paul Jordan, Michael J. O’Brien, (unknown), (unknown), Timothy R. Church, Margaret T. Mandelson, John I. Allen, Andrew Feld, Noah D. Kauff, (unknown), (unknown), (unknown), (unknown), Sara Fischer, Deborah Kuk, Ann G. Zauber	4
5	Mandibular Destruction Secondary to Invasion by Carcinoma Cuniculatum 2015 ·Journal of Oral and Maxillofacial Surgery ·Michael C. Shapiro, Brian J. F. Wong, Michael J. O’Brien, Andrew Salama	14
6	HD Chromoendoscopy Coupled with DNA Mass Spectrometry Profiling Identifies Somatic Mutations in Microdissected Human Proximal Aberrant Crypt Foci 2014 ·Molecular Cancer Research ·David A. Drew, Thomas J. Devers, Michael J. O’Brien, (unknown), Joel B. Levine, Daniel W. Rosenberg	14
7	Influence of phantom materials on the energy dependence of LiF:Mg,Ti thermoluminescent dosimeters exposed to 20–300 kV narrow x-ray spectra,¹³⁷Cs and⁶⁰Co photons 2014 ·Physics in Medicine and Biology ·G. Massillon-JL, (unknown), (unknown), Michael J. O’Brien, C. Guedes Soares	24
8	NOS1AP Associates with Scribble and Regulates Dendritic Spine Development 2010 ·Journal of Neuroscience ·(unknown), (unknown), (unknown), Karen Colwill, Michael J. O’Brien, Christopher W. Tsang, (unknown), (unknown), Pavel Metalnikov, William S. Trimble, Stefan Krueger, Tony Pawson, J. Paul Fawcett	59
9	Reinterpretation of histology of proximal colon polyps called hyperplastic in 2001 2009 ·World Journal of Gastroenterology ·(unknown), (unknown), Oscar W. Cummings, Michael J. O’Brien, John R. Goldblum, Douglas K. Rex	114
10	Melanin-concentrating hormone as a mediator of intestinal inflammation 2008 ·Proceedings of the National Academy of Sciences ·Efi Kokkotou, Alan C. Moss, Daniel Torres, Ιορδάνης Καραγιαννίδης, Adam S. Cheifetz, Sumei Liu, Michael J. O’Brien, Eleftheria Maratos–Flier, Charalabos Pothoulakis	50
11	Increasing adherence to therapy for recurrent hepatitis C after liver transplantation by starting at lower drug doses and adding growth factors 2007 ·(unknown), (unknown), Christopher L. Bowlus, (unknown), Christoph Troppmann, Rajen Ramsamooj, Michael J. O’Brien, Lorenzo Rossaro	2
12	MIP-3α neutralizing monoclonal antibody protects against TNBS-induced colonic injury and inflammation in mice 2007 ·American Journal of Physiology-Gastrointestinal and Liver Physiology ·Kianoosh Katchar, Ciarán P. Kelly, Sarah Keates, Michael J. O’Brien, Andrew C. Keates	55
13	Corticotropin-Releasing Hormone Receptor 2-Deficient Mice Have Reduced Intestinal Inflammatory Responses 2006 ·The Journal of Immunology ·Efi Kokkotou, Daniel Torres, Alan C. Moss, Michael J. O’Brien, Dimitri E. Grigoriadis, Katia Karalis, Charalabos Pothoulakis	80
14	Recommendations for the reporting of surgically resected specimens of colorectal carcinoma 2006 ·Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin ·Jeremy R. Jass, Michael J. O’Brien, Robert H. Riddell, Dale C. Snover	29
15	Guidelines for Colonoscopy Surveillance After Cancer Resection: A Consensus Update by the American Cancer Society and the US Multi-Society Task Force on Colorectal Cancer 2006 ·Gastroenterology ·Douglas K. Rex, Charles J. Kahi, Bernard Levin, Robert A. Smith, John H. Bond, Durado Brooks, Randall W. Burt, Tim Byers, Robert H. Fletcher, Neil Hyman, David A. Johnson, Lynne M. Kirk, David A. Lieberman, Theodore R. Levin, Michael J. O’Brien, Clifford L. Simmang, Alan G. Thorson, Sidney J. Winawer	296
16	Pathophysiological role of Toll-like receptor 5 engagement by bacterial flagellin in colonic inflammation 2005 ·Proceedings of the National Academy of Sciences ·Sang Hoon Rhee, Eunok Im, Martin Riegler, Efi Kokkotou, Michael J. O’Brien, Charalabos Pothoulakis	183
17	Hyperplastic Polyps, Serrated Adenomas, and the Serrated Polyp Neoplasia Pathway 2004 ·The American Journal of Gastroenterology ·Christopher Huang, Michael J. O’Brien, Shi Yang, Francis A. Farraye	117
18	Urinary assays for desmosine and hydroxylysylpyridinoline in the detection of cirrhosis 1997 ·Journal of Hepatology ·Nezam H. Afdhal, Andrew P. Keaveny, Steven A. Cohen, David Nunes, (unknown), Michael J. O’Brien, Phillip J. Stone	20
19	The national polyp study design, methods, and characteristics of patients with newly diagnosed polyps 1992 ·Cancer ·Sidney J. Winawer, Ann G. Zauber, Michael J. O’Brien, Leonard S. Gottlieb, Stephen S. Sternberg, Edward T. Stewart, John H. Bond, Melvin Schapiro, Joel F. Panish, Jerome D. Waye, Robert C. Kurtz, Moshe Shike, (unknown), (unknown)	118
20	The natural history of colorectal cancer. Opportunities for intervention 1991 ·Cancer ·Sidney J. Winawer, Ann G. Zauber, Edward T. Stewart, Michael J. O’Brien	33

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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