R. Freeman

2.3k total citations
113 papers, 1.5k citations indexed

About

R. Freeman is a scholar working on Epidemiology, Infectious Diseases and Clinical Biochemistry. According to data from OpenAlex, R. Freeman has authored 113 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Epidemiology, 29 papers in Infectious Diseases and 22 papers in Clinical Biochemistry. Recurrent topics in R. Freeman's work include Bacterial Identification and Susceptibility Testing (22 papers), Infective Endocarditis Diagnosis and Management (15 papers) and Mycobacterium research and diagnosis (12 papers). R. Freeman is often cited by papers focused on Bacterial Identification and Susceptibility Testing (22 papers), Infective Endocarditis Diagnosis and Management (15 papers) and Mycobacterium research and diagnosis (12 papers). R. Freeman collaborates with scholars based in United Kingdom, Nepal and Switzerland. R. Freeman's co-authors include B. King, P.R. Sisson, N. F. Lightfoot, F.K. Gould, Angela Kearns, J.G. Magee, F.K. Gould, Alan C. Ward, Michael Goodfellow and Michael Steward and has published in prestigious journals such as The Lancet, Journal of Clinical Microbiology and European Heart Journal.

In The Last Decade

R. Freeman

111 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Freeman United Kingdom 21 575 416 328 232 203 113 1.5k
C Tancrède France 21 390 0.7× 472 1.1× 409 1.2× 119 0.5× 170 0.8× 47 1.5k
Nadine M. Sullivan United States 17 554 1.0× 880 2.1× 228 0.7× 204 0.9× 195 1.0× 25 1.5k
D Gröschel United States 21 479 0.8× 664 1.6× 378 1.2× 222 1.0× 109 0.5× 62 1.7k
A Ayyagarí India 26 668 1.2× 605 1.5× 425 1.3× 105 0.5× 403 2.0× 135 2.2k
A B Onderdonk United States 19 303 0.5× 367 0.9× 385 1.2× 224 1.0× 283 1.4× 26 1.3k
L. B. Guze United States 22 772 1.3× 453 1.1× 221 0.7× 161 0.7× 98 0.5× 77 1.7k
H.W. Van Landuyt Belgium 21 459 0.8× 658 1.6× 180 0.5× 202 0.9× 120 0.6× 44 1.4k
Erik Kihlström Sweden 28 398 0.7× 290 0.7× 322 1.0× 84 0.4× 177 0.9× 71 1.8k
C. L. Wells United States 23 342 0.6× 715 1.7× 490 1.5× 282 1.2× 303 1.5× 52 2.0k
H Drugeon France 20 534 0.9× 694 1.7× 377 1.1× 263 1.1× 220 1.1× 76 1.7k

Countries citing papers authored by R. Freeman

Since Specialization
Citations

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

Fields of papers citing papers by R. Freeman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Freeman

This figure shows the co-authorship network connecting the top 25 collaborators of R. Freeman. A scholar is included among the top collaborators of R. Freeman 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 R. Freeman. R. Freeman 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.
Freeman, R., et al.. (2003). Pyrolysis Mass Spectrometry. Humana Press eBooks. 46. 97–106. 9 indexed citations
2.
Kearns, Angela, et al.. (1999). Rapid detection of methicillin-resistant Staphylococci by multiplex PCR. Journal of Hospital Infection. 43(1). 33–37. 62 indexed citations
3.
West, N., D. G. Adams, P.R. Sisson, R. Freeman, & P M Hawkey. (1999). Pyrolysis mass spectrometry analysis of free-living and symbiotic cyanobacteria. Antonie van Leeuwenhoek. 75(3). 201–206. 1 indexed citations
4.
Magee, J.G., R. Freeman, & A. M. Barrett. (1998). Enhanced speed and sensitivity in the cultural diagnosis of pulmonary tuberculosis with a continuous automated mycobacterial liquid culture (CAMLiC) system. Journal of Medical Microbiology. 47(6). 547–553. 11 indexed citations
5.
Freeman, R., et al.. (1997). A Highly Discriminatory Method for the Direct Comparison of Two Closely Related Bacterial Populations by Pyrolysis Mass Spectrometry. Zentralblatt für Bakteriologie. 285(2). 285–290. 1 indexed citations
6.
HANNAN, P. C. T., Angela Kearns, P.R. Sisson, & R. Freeman. (1997). Differentiation of strains of Mycoplasma fermentans from various sources by pyrolysis mass spectrometry. Journal of Medical Microbiology. 46(4). 348–353. 2 indexed citations
7.
Goodfellow, Michael, et al.. (1997). Curie-Point Pyrolysis Mass Spectrometry as a Tool in Clinical Microbiology. Zentralblatt für Bakteriologie. 285(2). 133–156. 17 indexed citations
8.
Goodfellow, Michael, et al.. (1997). Differentiation of Mycobacterium senegalense from Related Non-chromogenic Mycobacteria Using Pyrolysis Mass Spectrometry. Zentralblatt für Bakteriologie. 285(2). 278–284. 5 indexed citations
9.
Freeman, R., et al.. (1996). Infection with Bacillus cereus after Close-Range Gunshot Injuries. PubMed. 41(3). 546–548. 10 indexed citations
10.
Sisson, P.R., et al.. (1994). Rapid characterisation of Candida albicans by pyrolysis mass spectrometry. Journal of Medical Microbiology. 41(2). 98–105. 5 indexed citations
11.
Freeman, R., Royston Goodacre, P.R. Sisson, et al.. (1994). Rapid identification of species within the Mycobacterium tuberculosis complex by artificial neural network analysis of pyrolysis mass spectra. Journal of Medical Microbiology. 40(3). 170–173. 56 indexed citations
12.
Corkill, John E., P.R. Sisson, Alan R Smyth, et al.. (1994). Application of pyrolysis mass spectroscopy and SDS-PAGE in the study of the epidemiology of Pseudomonas cepacia in cystic fibrosis. Journal of Medical Microbiology. 41(2). 106–111. 14 indexed citations
13.
Freeman, R.. (1993). Cost-control issues within the hospital environment in the United Kingdom.. PubMed. 28 Suppl 1. 12–5. 1 indexed citations
14.
Freeman, R., et al.. (1993). Crystal violet reactions ofStaphylococcus aureusstrains colonizing infants in the first six weeks. Epidemiology and Infection. 110(1). 79–86. 2 indexed citations
15.
Orr, K.E., et al.. (1992). Nosocomial infection with Clostridium difficile investigated by pyrolysis mass spectrometry. Journal of Medical Microbiology. 37(5). 352–356. 20 indexed citations
16.
Orr, K.E., et al.. (1991). Rapid inter-strain comparison by pyrolysis mass spectrometry in nosocomial infection with Xanthomonas maltophilia. Journal of Hospital Infection. 17(3). 187–195. 30 indexed citations
17.
Sisson, P.R., R. Freeman, J.G. Magee, & N. F. Lightfoot. (1991). Differentiation between mycobacteria of the Mycobacterium tuberculosis complex by pyrolysis mass spectrometry. Tubercle. 72(3). 206–209. 13 indexed citations
18.
Sisson, P.R., R. Freeman, N. F. Lightfoot, & R.I. Richardson. (1991). Incrimination of an environmental source of a case of Legionnaires' disease by pyrolysis mass spectrometry. Epidemiology and Infection. 107(1). 127–132. 18 indexed citations
19.
Freeman, R., et al.. (1990). Pyrolysis-mass spectrometry (Py-MS) for the rapid epidemiological typing of clinically significant bacterial pathogens. Journal of Medical Microbiology. 32(4). 283–286. 38 indexed citations
20.
Freeman, R. & Mark E. Hodson. (1972). Q fever endocarditis treated with trimethoprim and sulphamethoxazole.. BMJ. 1(5797). 419–420. 34 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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