Robert C. Free

4.6k total citations
34 papers, 772 citations indexed

About

Robert C. Free is a scholar working on Pulmonary and Respiratory Medicine, Molecular Biology and Epidemiology. According to data from OpenAlex, Robert C. Free has authored 34 papers receiving a total of 772 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Pulmonary and Respiratory Medicine, 10 papers in Molecular Biology and 7 papers in Epidemiology. Recurrent topics in Robert C. Free's work include Chronic Obstructive Pulmonary Disease (COPD) Research (12 papers), Advanced Chemical Sensor Technologies (6 papers) and Tuberculosis Research and Epidemiology (5 papers). Robert C. Free is often cited by papers focused on Chronic Obstructive Pulmonary Disease (COPD) Research (12 papers), Advanced Chemical Sensor Technologies (6 papers) and Tuberculosis Research and Epidemiology (5 papers). Robert C. Free collaborates with scholars based in United Kingdom, Sri Lanka and Uganda. Robert C. Free's co-authors include Anthony J. Brookes, Robert Hastings, Tim Beck, Abbie Fairs, Catherine H. Pashley, Andrew J. Wardlaw, Christopher E. Brightling, Salman Siddiqui, Michael Wilde and P. S. Monks and has published in prestigious journals such as Nucleic Acids Research, Bioinformatics and Analytical Chemistry.

In The Last Decade

Robert C. Free

33 papers receiving 766 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Robert C. Free United Kingdom 14 252 155 151 124 87 34 772
Giovanni Scala Italy 23 806 3.2× 79 0.5× 68 0.5× 92 0.7× 85 1.0× 72 1.5k
Shinichi Kobayashi Japan 19 223 0.9× 65 0.4× 59 0.4× 51 0.4× 115 1.3× 122 1.4k
Lizhen Xu China 20 606 2.4× 130 0.8× 57 0.4× 145 1.2× 108 1.2× 68 1.5k
Jonathan Heiss United States 13 591 2.3× 124 0.8× 60 0.4× 127 1.0× 25 0.3× 21 895
Junhao Chen China 19 136 0.5× 42 0.3× 49 0.3× 42 0.3× 110 1.3× 82 1.0k
He S. Yang United States 17 251 1.0× 96 0.6× 30 0.2× 97 0.8× 58 0.7× 59 1.1k
Paniz Jasbi United States 18 565 2.2× 49 0.3× 45 0.3× 57 0.5× 63 0.7× 41 974
Xuejing Li China 21 379 1.5× 44 0.3× 55 0.4× 42 0.3× 137 1.6× 120 1.3k
Shuang Ji China 19 350 1.4× 36 0.2× 82 0.5× 59 0.5× 136 1.6× 61 917

Countries citing papers authored by Robert C. Free

Since Specialization
Citations

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

Fields of papers citing papers by Robert C. Free

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert C. Free. 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 Robert C. Free. The network helps show where Robert C. Free may publish in the future.

Co-authorship network of co-authors of Robert C. Free

This figure shows the co-authorship network connecting the top 25 collaborators of Robert C. Free. A scholar is included among the top collaborators of Robert C. Free 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 Robert C. Free. Robert C. Free 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
1.
Ibrahim, Wadah, Rebecca L. Cordell, Michael Wilde, et al.. (2025). Oscillometry to assess ventilation heterogeneity during hospital admission for acute cardiorespiratory illness. ERJ Open Research. 11(3). 351–2024.
2.
Zhu, Ziquan, Lu Liu, Robert C. Free, Ashiq Anjum, & John Panneerselvam. (2024). OPT-CO: Optimizing pre-trained transformer models for efficient COVID-19 classification with stochastic configuration networks. Information Sciences. 680. 121141–121141. 26 indexed citations
3.
James, Ben, Neil Greening, Pranabashis Haldar, et al.. (2024). Prognostication of co-morbidity clusters on hospitalisation and mortality in advanced COPD. Respiratory Medicine. 222. 107525–107525. 2 indexed citations
4.
5.
Free, Robert C., et al.. (2021). Specialist pneumonia intervention nurse service improves pneumonia care and outcome. BMJ Open Respiratory Research. 8(1). e000863–e000863. 2 indexed citations
6.
Ibrahim, Wadah, Rebecca L. Cordell, Michael Wilde, et al.. (2021). Diagnosis of COVID-19 by exhaled breath analysis using gas chromatography–mass spectrometry. ERJ Open Research. 7(3). 139–2021. 75 indexed citations
7.
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9.
Fabbri, Chiara, Saskia P. Hagenaars, Catherine John, et al.. (2021). Genetic and clinical characteristics of treatment-resistant depression using primary care records in two UK cohorts. Molecular Psychiatry. 26(7). 3363–3373. 80 indexed citations
10.
Zhao, Bo, Luke Bryant, Rebecca L. Cordell, et al.. (2020). LabPipe: an extensible bioinformatics toolkit to manage experimental data and metadata. BMC Bioinformatics. 21(1). 556–556. 4 indexed citations
11.
Wilde, Michael, Bo Zhao, Rebecca L. Cordell, et al.. (2020). Automating and Extending Comprehensive Two-Dimensional Gas Chromatography Data Processing by Interfacing Open-Source and Commercial Software. Analytical Chemistry. 92(20). 13953–13960. 23 indexed citations
12.
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Haldar, Koirobi, Leena George, Zhang Wang, et al.. (2020). The sputum microbiome is distinct between COPD and health, independent of smoking history. Respiratory Research. 21(1). 183–183. 69 indexed citations
14.
Wilde, Michael, Rebecca L. Cordell, Dahlia Salman, et al.. (2019). Breath analysis by two-dimensional gas chromatography with dual flame ionisation and mass spectrometric detection – Method optimisation and integration within a large-scale clinical study. Journal of Chromatography A. 1594. 160–172. 44 indexed citations
15.
Ramsheh, Mohammadali Yavari, Koirobi Haldar, Mona Bafadhel, et al.. (2019). Resistome analyses of sputum from COPD and healthy subjects reveals bacterial load-related prevalence of target genes. Thorax. 75(1). 8–16. 14 indexed citations
16.
Richardson, Matthew, Martin Wiselka, Robert C. Free, et al.. (2018). A nested case–control study of predictors for tuberculosis recurrence in a large UK Centre. BMC Infectious Diseases. 18(1). 94–94. 12 indexed citations
17.
Steiner, Michael, Rachael A Evans, Neil Greening, et al.. (2015). Comprehensive respiratory assessment in advanced COPD: a ‘campus to clinic’ translational framework. Thorax. 70(8). 805–808. 8 indexed citations
18.
Beck, Tim, et al.. (2013). GWAS Central: a comprehensive resource for the comparison and interrogation of genome-wide association studies. European Journal of Human Genetics. 22(7). 949–952. 110 indexed citations
19.
Smith, Claire M., Jana Djakow, Robert C. Free, et al.. (2012). ciliaFA: a research tool for automated, high-throughput measurement of ciliary beat frequency using freely available software. PubMed. 1(1). 14–14. 70 indexed citations
20.
Þórisson, Guðmundur Á., Robert C. Free, Robert Hastings, et al.. (2008). HGVbaseG2P: a central genetic association database. Nucleic Acids Research. 37(Database). D797–D802. 50 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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