Holly Hagan

41.8k citations
190 papers · 9.7k indexed · 1 hit paper · h-index 50
Topics
HIV, Drug Use, Sexual Risk (151 papers)Hepatitis C virus research (93 papers)HIV/AIDS Research and Interventions (88 papers)
Journals
The LancetSHILAP Revista de lepidopterologíaPLoS ONE

In The Last Decade

Holly Hagan

188 papers receiving 9.3k citations

Hit Papers

Global epidemiology of hepatitis B and hepatitis C in peo...20112026201620212011250500750

Peers

Holly Hagan
Comparison fields: 5 of 144
  • Epidemiology 8.2k
  • Hepatology 4.4k
  • Infectious Diseases 3.8k
  • Public Health, Environmental and Occupational Health 1.9k
  • General Health Professions 1.5k
Replace Sharon Hutchinson with:
Sharon Hutchinson United Kingdom
Judith A. Hahn United States
Jason Grebely Australia
Kate Dolan Australia
Josiah D. Rich United States
Lucas Wiessing Portugal
David Goldberg United Kingdom
Vivian Hope United Kingdom
Mark Tyndall Canada
Bradley Mathers Australia
Holly Hagan relative to Sharon Hutchinson United Kingdom Sharon Hutchinson's profile →
Citations per field
00.5×1.5×2.1×
Sharon Hutchinson · 1×
Citations per year

Countries citing papers authored by Holly Hagan

Since Specialization
Citations

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

Fields of papers citing papers by Holly Hagan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Holly Hagan

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

All Works

20 of 20 papers shown
#WorkIndexed citations
1 2
2 9
3
A peer-education intervention to reduce injection risk behaviors for HIV and HCV infection in young injection drug users.
0
4 32
5 12
6 16
7 10
8 56
9 20
10
Global epidemiology of hepatitis B and hepatitis C in people who inject drugs: results of systematic reviewsbreakdown →
963
11 46
12 22
13 41
14 47
15 25
16 60
17 146
18 6
19 18
20 35

About Holly Hagan

Holly Hagan is a scholar working on Hepatology, Infectious Diseases and Epidemiology, having authored 190 papers that have together received 9.7k indexed citations. Recurring topics across this work include HIV, Drug Use, Sexual Risk (151 papers), Hepatitis C virus research (93 papers) and HIV/AIDS Research and Interventions (88 papers). The work is most often cited by research in Hepatology (4.4k citations), Epidemiology (8.2k citations) and Infectious Diseases (3.8k citations). Holly Hagan has collaborated with scholars based in United States, United Kingdom and Australia. Frequent co-authors include Don C. Des Jarlais, Hanne Thiede, Samuel R. Friedman, Louisa Degenhardt, Enrique R. Pouget, Kamyar Arasteh, Ashly E. Jordan, Bradley Mathers, Danielle Horyniak and Paul K Nelson. Their work appears in journals such as The Lancet, SHILAP Revista de lepidopterología and PLoS ONE.

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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