C O’Callaghan

2.6k total citations
41 papers, 1.9k citations indexed

About

C O’Callaghan is a scholar working on Pulmonary and Respiratory Medicine, Physiology and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, C O’Callaghan has authored 41 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Pulmonary and Respiratory Medicine, 10 papers in Physiology and 8 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in C O’Callaghan's work include Inhalation and Respiratory Drug Delivery (24 papers), Cystic Fibrosis Research Advances (12 papers) and Asthma and respiratory diseases (9 papers). C O’Callaghan is often cited by papers focused on Inhalation and Respiratory Drug Delivery (24 papers), Cystic Fibrosis Research Advances (12 papers) and Asthma and respiratory diseases (9 papers). C O’Callaghan collaborates with scholars based in United Kingdom, Italy and United States. C O’Callaghan's co-authors include Peter W. Barry, PW Barry, P W Barry, Mark Chilvers, Andrew Bush, Heymut Omran, Jane S. Lucas, Deborah Snijders, Kim G. Nielsen and Claudia E. Kuehni and has published in prestigious journals such as SHILAP Revista de lepidopterología, Advanced Drug Delivery Reviews and Genetics.

In The Last Decade

C O’Callaghan

41 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
C O’Callaghan United Kingdom 22 1.7k 534 201 142 116 41 1.9k
T. A. Standaert United States 28 1.4k 0.9× 257 0.5× 453 2.3× 160 1.1× 219 1.9× 98 2.3k
Jonathan Rutland Australia 17 744 0.5× 138 0.3× 198 1.0× 58 0.4× 100 0.9× 34 1.2k
Julian L. Allen United States 29 1.3k 0.8× 376 0.7× 106 0.5× 235 1.7× 152 1.3× 81 2.4k
Lewis E. Gibson United States 16 1.2k 0.7× 204 0.4× 69 0.3× 124 0.9× 92 0.8× 27 2.0k
Malcolm Birch United Kingdom 21 618 0.4× 320 0.6× 477 2.4× 29 0.2× 52 0.4× 60 1.4k
Charles E. Pope United States 34 1.4k 0.8× 441 0.8× 41 0.2× 43 0.3× 252 2.2× 78 5.0k
Richard N. Dalby United States 25 1.2k 0.7× 366 0.7× 12 0.1× 48 0.3× 48 0.4× 46 1.7k
Petr Pohunek Czechia 23 1.9k 1.2× 991 1.9× 176 0.9× 108 0.8× 299 2.6× 78 2.5k
Udayan K. Shah United States 19 250 0.2× 167 0.3× 68 0.3× 94 0.7× 58 0.5× 67 1.0k
G. Miserocchi Italy 19 687 0.4× 143 0.3× 80 0.4× 15 0.1× 27 0.2× 37 1.2k

Countries citing papers authored by C O’Callaghan

Since Specialization
Citations

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

Fields of papers citing papers by C O’Callaghan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C O’Callaghan

This figure shows the co-authorship network connecting the top 25 collaborators of C O’Callaghan. A scholar is included among the top collaborators of C O’Callaghan 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 C O’Callaghan. C O’Callaghan 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.
Kuehni, Claudia E., T. Frischer, Marie‐Pierre F. Strippoli, et al.. (2010). Factors influencing age at diagnosis of primary ciliary dyskinesia in European children. European Respiratory Journal. 36(6). 1248–1258. 218 indexed citations
2.
O’Callaghan, C, P Chetcuti, & Eduardo Moya. (2009). High prevalence of primary ciliary dyskinesia in a British Asian population. Archives of Disease in Childhood. 95(1). 51–52. 91 indexed citations
3.
Barbato, Antonio, Thomas Frischer, Claudia E. Kuehni, et al.. (2009). Primary ciliary dyskinesia: a consensus statement on diagnostic and treatment approaches in children. European Respiratory Journal. 34(6). 1264–1276. 335 indexed citations
4.
Smyth, Alan R, A Barbato, Nicole Beydon, et al.. (2009). Respiratory medicines for children: current evidence, unlicensed use and research priorities. European Respiratory Journal. 35(2). 247–265. 31 indexed citations
5.
Ehtezazi, Touraj, Kevin W Southern, David Allanson, Ian Jenkinson, & C O’Callaghan. (2005). Suitability of the Upper Airway Models Obtained from MRI Studies in Simulating Drug Lung Deposition from Inhalers. Pharmaceutical Research. 22(1). 166–170. 18 indexed citations
6.
Robertson, AS, et al.. (2004). What effect does isoflurane have upon ciliary beat pattern: an in vivo study. Clinical Otolaryngology. 29(2). 157–160. 17 indexed citations
7.
O’Callaghan, C. (2000). How to choose delivery devices for asthma. Archives of Disease in Childhood. 82(3). 185–187. 41 indexed citations
8.
Chilvers, Mark & C O’Callaghan. (2000). Local mucociliary defence mechanisms. Paediatric Respiratory Reviews. 1(1). 27–34. 85 indexed citations
9.
Barry, Peter W. & C O’Callaghan. (1999). New formulation metered dose inhaler increases breath alcohol levels. Respiratory Medicine. 93(3). 167–168. 7 indexed citations
10.
Barry, P W & C O’Callaghan. (1999). An in vitro analysis of the output of salbutamol from different nebulizers. European Respiratory Journal. 13(5). 1164–1164. 27 indexed citations
11.
O’Callaghan, C & Peter W. Barry. (1997). The science of nebulised drug delivery. Thorax. 52(Supplement 2). S31–S44. 235 indexed citations
12.
Barry, Peter W. & C O’Callaghan. (1997). Nebuliser therapy in childhood. Thorax. 52(Supplement 2). S78–S88. 19 indexed citations
13.
Raphael, Jacob, et al.. (1996). Effects of 3 MAC of halothane, enflurane and isoflurane on cilia beat frequency of human nasal epithelium in vitro. British Journal of Anaesthesia. 76(1). 116–121. 31 indexed citations
14.
Barry, P W & C O’Callaghan. (1995). Video Analysis of the Aerosol Cloud Produced by Metered‐dose Inhalers. Pharmacy and Pharmacology Communications. 1(3). 119–121. 2 indexed citations
15.
Barry, P W & C O’Callaghan. (1995). The Optimum Size and Shape of Spacer Devices for Inhalational Therapy. Journal of Aerosol Medicine. 8(3). 303–305. 23 indexed citations
16.
O’Callaghan, C. (1995). Problems with Drug Delivery from Nebulizers and Spacers. Journal of Aerosol Medicine. 8(3). 301–302. 3 indexed citations
17.
O’Callaghan, C. (1994). Targeting Drug Delivery to the Lungs by Inhalation. Mediators of Inflammation. 3(7). S31–3. 5 indexed citations
18.
Barry, PW & C O’Callaghan. (1994). Multiple actuations of salbutamol MDI into a spacer device reduce the amount of drug recovered in the respirable range. European Respiratory Journal. 7(9). 1707–1709. 55 indexed citations
19.
O’Callaghan, C, et al.. (1994). Effect of halothane on cilia beat frequency of ciliated human respiratory epithelium in vitro †. British Journal of Anaesthesia. 73(4). 507–510. 24 indexed citations
20.
O’Callaghan, C, et al.. (1989). Asthma therapy and a tracheostomy. The Journal of Laryngology & Otology. 103(4). 427–428. 9 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by T. A. Standaert Breakdown of academic impact, for papers by Jonathan Rutland Breakdown of academic impact, for papers by Julian L. Allen Breakdown of academic impact, for papers by Lewis E. Gibson Breakdown of academic impact, for papers by Malcolm Birch Breakdown of academic impact, for papers by Charles E. Pope Breakdown of academic impact, for papers by Richard N. Dalby Breakdown of academic impact, for papers by Petr Pohunek Breakdown of academic impact, for papers by Udayan K. Shah Breakdown of academic impact, for papers by G. Miserocchi
Rankless by CCL
2026