Michael Farrell

49.5k total citations · 10 hit papers
785 papers, 29.0k citations indexed

About

Michael Farrell is a scholar working on Epidemiology, Public Health, Environmental and Occupational Health and Clinical Psychology. According to data from OpenAlex, Michael Farrell has authored 785 papers receiving a total of 29.0k indexed citations (citations by other indexed papers that have themselves been cited), including 212 papers in Epidemiology, 171 papers in Public Health, Environmental and Occupational Health and 81 papers in Clinical Psychology. Recurrent topics in Michael Farrell's work include Opioid Use Disorder Treatment (145 papers), Substance Abuse Treatment and Outcomes (130 papers) and HIV, Drug Use, Sexual Risk (62 papers). Michael Farrell is often cited by papers focused on Opioid Use Disorder Treatment (145 papers), Substance Abuse Treatment and Outcomes (130 papers) and HIV, Drug Use, Sexual Risk (62 papers). Michael Farrell collaborates with scholars based in United Kingdom, Australia and United States. Michael Farrell's co-authors include Grace M. Barnes, Paul Bebbington, Rachel Jenkins, Traolach Brugha, Howard Meltzer, Glyn Lewis, John Marsden, Louisa Degenhardt, Robert Ali and Nicola Singleton and has published in prestigious journals such as Cell, The Lancet and Journal of Biological Chemistry.

In The Last Decade

Michael Farrell

737 papers receiving 27.2k citations

Hit Papers

align trajectories sort by overperformance

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.

Validation of the alcohol, smoking and substance involvement screening test (ASSIST)

2008 828 citations Robert Ali, Michael Farrell et al. Addiction profile →
Global statistics on alcohol, tobacco and illicit drug use: 2017 status report

2018 697 citations Amy Peacock, Samantha Colledge‐Frisby et al. Addiction profile →
Meta‐analysis of drug‐related deaths soon after release from prison

2010 509 citations Michael Farrell, John Marsden et al. Addiction profile →
Association of Opioid Agonist Treatment With All-Cause Mortality and Specific Causes of Death Among People With Opioid Dependence

2021 323 citations Thomas Santo, Matthew Hickman et al. profile →
Cannabinoids for the treatment of mental disorders and symptoms of mental disorders: a systematic review and meta-analysis

2019 296 citations Emily Stockings, Gabrielle Campbell et al. profile →
Cannabis and cannabinoids for the treatment of people with chronic noncancer pain conditions: a systematic review and meta-analysis of controlled and observational studies

2018 293 citations Emily Stockings, Gabrielle Campbell et al. Pain profile →
Effects of medication-assisted treatment on mortality among opioids users: a systematic review and meta-analysis

2018 254 citations Louisa Degenhardt, Michael Farrell et al. profile →
New psychoactive substances: challenges for drug surveillance, control, and public health responses

2019 216 citations Amy Peacock, Louisa Degenhardt et al. profile →
Epidemiology of injecting drug use, prevalence of injecting-related harm, and exposure to behavioural and environmental risks among people who inject drugs: a systematic review

2023 109 citations Louisa Degenhardt, Samantha Colledge‐Frisby et al. profile →
The prevalence of gambling and problematic gambling: a systematic review and meta-analysis

2024 61 citations Samantha Colledge‐Frisby, Michael Farrell et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Michael Farrell	8.6k	6.4k	6.1k	4.7k	3.3k	785	29.0k
Ian R. White	4.6k 0.5×	4.2k 0.6×	5.9k 1.0×	5.7k 1.2×	2.0k 0.6×	445	43.5k
Ali H. Mokdad	8.8k 1.0×	5.1k 0.8×	13.7k 2.2×	9.3k 2.0×	2.5k 0.8×	490	52.4k
James C. Anthony	6.2k 0.7×	5.4k 0.8×	2.3k 0.4×	4.5k 1.0×	2.5k 0.8×	356	22.6k
Theo Vos	6.2k 0.7×	8.9k 1.4×	7.2k 1.2×	8.3k 1.8×	5.1k 1.5×	303	51.0k
Gail Williams	4.2k 0.5×	5.4k 0.8×	7.5k 1.2×	3.6k 0.8×	1.7k 0.5×	855	39.8k
Jaakko Kaprio	5.9k 0.7×	7.7k 1.2×	9.2k 1.5×	3.9k 0.8×	2.9k 0.9×	1.2k	61.3k
Deborah A. Dawson	10.0k 1.2×	7.3k 1.1×	2.0k 0.3×	4.9k 1.0×	2.7k 0.8×	342	26.4k
Katherine M. Keyes	7.1k 0.8×	8.0k 1.2×	5.2k 0.8×	5.5k 1.2×	4.0k 1.2×	483	25.5k
Donald L. Patrick	5.2k 0.6×	6.7k 1.0×	8.5k 1.4×	9.5k 2.0×	2.8k 0.8×	429	48.7k
Jos W. R. Twisk	3.4k 0.4×	3.1k 0.5×	6.7k 1.1×	4.6k 1.0×	2.1k 0.6×	801	36.9k

Countries citing papers authored by Michael Farrell

Since Specialization

Citations

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

Fields of papers citing papers by Michael Farrell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Michael Farrell. 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 Farrell. The network helps show where Michael Farrell may publish in the future.

Co-authorship network of co-authors of Michael Farrell

This figure shows the co-authorship network connecting the top 25 collaborators of Michael Farrell. A scholar is included among the top collaborators of Michael Farrell 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 Farrell. Michael Farrell 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

Jones, N. R., Amy Gibson, Duong Thuy Tran, et al.. (2025). Data Resource Profile Update: The Opioid Agonist Treatment and Safety II (OATS II) Study, 2001–22, New South Wales, Australia. International Journal of Epidemiology. 54(2). 2 indexed citations

Tegge, Allison N., et al.. (2025). Treatment and recovery from opioid use disorder: The role of pain severity in individuals with moderate to severe pain. Drug and Alcohol Dependence. 276. 112902–112902.

Greene, Chris, Nicole Hanley, Charitini Salla, et al.. (2025). Restoration of blood brain barrier integrity post neurosurgical resection in drug resistant epilepsy. Epilepsy & Behavior. 168. 110425–110425. 2 indexed citations

Santo, Thomas, Antoine Chaillon, Natasha K. Martin, et al.. (2025). Quantifying the impact of a large‐scale opioid agonist treatment program on suicide prevention in New South Wales, Australia: A data‐modeling study. Addiction. 120(8). 1601–1609. 1 indexed citations

Novak, Nicole L., Michael Farrell, Emily Garner, et al.. (2024). Determinants of antimicrobial resistance in biosolids: A systematic review, database, and meta-analysis. The Science of The Total Environment. 957. 177455–177455. 5 indexed citations

Darke, Shane, Johan Duflou, Amy Peacock, Michael Farrell, & Julia Lappin. (2024). Differences in heroin overdose deaths in Australia by age, 2020-2022: Disease and estimated survival times. SHILAP Revista de lepidopterología. 10. 100217–100217. 1 indexed citations

Farrell, Michael. (2023). Preliminary evaluation of ChatGPT as a machine translation engine and as an automatic post-editor of raw machine translation output from other machine translation engines. 108–113.

Farrell, Michael. (2023). Current evidence of post-editese: differences between post-edited neural machine translation output and human translation revealed through human evaluation. 52–63. 1 indexed citations

Brothers, Thomas D., Dan Lewer, N. R. Jones, et al.. (2022). Opioid agonist treatment and risk of death or rehospitalization following injection drug use–associated bacterial and fungal infections: A cohort study in New South Wales, Australia. PLoS Medicine. 19(7). e1004049–e1004049. 13 indexed citations

10.

Dewald, E. L., D. S. Clark, D. T. Casey, et al.. (2022). Compensating cylindrical Hohlraum mode 4 asymmetry via capsule thickness tailoring and effects on implosions. Physics of Plasmas. 29(9). 2 indexed citations

11.

Darke, Shane, Michael Farrell, Johan Duflou, Briony Larance, & Julia Lappin. (2019). Circumstances of death of opioid users being treated with naltrexone. Addiction. 114(11). 2000–2007. 6 indexed citations

12.

Stockings, Emily, Gabrielle Campbell, Wayne Hall, et al.. (2018). Cannabis and cannabinoids for the treatment of people with chronic noncancer pain conditions: a systematic review and meta-analysis of controlled and observational studies. Pain. 159(10). 1932–1954. 293 indexed citations breakdown →

13.

Maddox, Brian, Y. P. Opachich, C. E. Wehrenberg, et al.. (2018). Inferring Strength of Tantalum from Hydrodynamic Instability Recovery Experiments. Journal of Dynamic Behavior of Materials. 4(2). 244–255. 5 indexed citations

14.

Gowing, Linda, Michael Farrell, Reinhard Bornemann, Lynn E. Sullivan, & Robert Ali. (2011). Oral substitution treatment of injecting opioid users for prevention of HIV infection. Cochrane Database of Systematic Reviews. CD004145–CD004145. 235 indexed citations

15.

O’Rourke, Donald M., et al.. (2011). Hereditary cerebral haemorrhage with amyloidosis. Lenus, The Irish Health Repository (Dr Steevens Hospital Library). 2 indexed citations

16.

Farrell, Michael, Adrian Philbey, & Ian Ramsey. (2006). Ureteral fibroepithelial polyp in a dog. Journal of Small Animal Practice. 47(7). 409–412. 17 indexed citations

17.

Meltzer, Howard, Paul Bebbington, Traolach Brugha, et al.. (2003). The reluctance to seek treatment for neurotic disorders (Reprinted from Journal of Mental Health, vol 9, pgs 319-327, 2000). UCL Discovery (University College London). 1 indexed citations

18.

Lewis, Glyn, Paul Bebbington, Traolach Brugha, et al.. (2003). Socio-economic status, standard of living, and neurotic disorder (Reprinted from The Lancet, vol 352, pgs 605-609, 1998). UCL Discovery (University College London). 1 indexed citations

19.

Bebbington, Paul, Herbert Y. Meltzer, Traolach Brugha, et al.. (2003). Unequal access and unmet need: neurotic disorders and the use of primary care services (Reprinted from Psychological Medicine, vol 30, pgs 1359-1367, 2000). UCL Discovery (University College London).

20.

Fahy, Thomas, Alan Kerr, Anne Farmer, et al.. (1998). BJP volume 172 issue 4 Cover and Front matter. The British Journal of Psychiatry. 172(4). f1–f30. 1 indexed citations

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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