C. A. Llewelyn

2.5k total citations · 1 hit paper
27 papers, 1.6k citations indexed

About

C. A. Llewelyn is a scholar working on Agronomy and Crop Science, Molecular Biology and Management of Technology and Innovation. According to data from OpenAlex, C. A. Llewelyn has authored 27 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Agronomy and Crop Science, 7 papers in Molecular Biology and 6 papers in Management of Technology and Innovation. Recurrent topics in C. A. Llewelyn's work include Reproductive Physiology in Livestock (8 papers), Prion Diseases and Protein Misfolding (7 papers) and Blood donation and transfusion practices (6 papers). C. A. Llewelyn is often cited by papers focused on Reproductive Physiology in Livestock (8 papers), Prion Diseases and Protein Misfolding (7 papers) and Blood donation and transfusion practices (6 papers). C. A. Llewelyn collaborates with scholars based in United Kingdom, Zimbabwe and Nigeria. C. A. Llewelyn's co-authors include J. Mackenzie, Simon Cousens, Khaled Amar, RSG Knight, Patricia E. Hewitt, Robert Will, L. M. Williamson, Trevor Baglin, A.G. Luckins and James Neuberger and has published in prestigious journals such as The Lancet, British Journal of Anaesthesia and Transfusion.

In The Last Decade

C. A. Llewelyn

27 papers receiving 1.6k citations

Hit Papers

align trajectories

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.

Possible transmission of variant Creutzfeldt-Jakob disease by blood transfusion

2004 775 citations C. A. Llewelyn, RSG Knight et al. The Lancet profile →

Peers

Countries citing papers authored by C. A. Llewelyn

Since Specialization

Citations

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

Fields of papers citing papers by C. A. Llewelyn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. A. Llewelyn

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

#	Work	Indexed citations
1	Cobenefits for Participants of a Nurse‐Led Telephone‐Based Early Childhood Obesity Prevention Intervention: A Multimethod Qualitative Study 2025 ·International Journal of Nursing Practice ·Sarah Taki, (unknown), (unknown), (unknown), (unknown), (unknown), Jennifer Jones, (unknown), C. A. Llewelyn, Louise A. Baur, Li Ming Wen	1
2	Transfusion in adults: 10‐year survival of red cell, plasma and platelet recipients following transfusion 2016 ·Transfusion Medicine ·Sarah L. Morley, Cara Hudson, C. A. Llewelyn, A. W. Wells, A. L. Johnson, L. M. Williamson, (unknown)	4
3	Early cryoprecipitate for major haemorrhage in trauma: a randomised controlled feasibility trial 2015 ·British Journal of Anaesthesia ·Nicola Curry, C. P. Rourke, Ross Davenport, Sally Beer, Laura Pankhurst, Alison Deary, Helen Thomas, C. A. Llewelyn, Laura Green, Heidi Doughty, Giles Nordmann, Karim Brohi, Simon Stanworth	122
4	The EASTR Study: indications for transfusion and estimates of transfusion recipient numbers in hospitals supplied by the National Blood Service 2009 ·Transfusion Medicine ·A. W. Wells, C. A. Llewelyn, Angela Casbard, (unknown), (unknown), S. Ballard, Jackie Buck, (unknown), Mike Murphy, L. M. Williamson	60
5	A retrospective case note review of deceased recipients of vCJD‐implicated blood transfusions 2009 ·Vox Sanguinis ·M. Gillies, (unknown), C. A. Llewelyn, J. Mackenzie, Helen Ward, Patricia E. Hewitt, Robert Will	19
6	Variant Creutzfeldt‐Jakob disease and exposure to fractionated plasma products 2009 ·Vox Sanguinis ·Helen Ward, J. Mackenzie, C. A. Llewelyn, Richard Knight, Patricia E. Hewitt, N. Connor, A M Molesworth, Robert Will	8
7	The EASTR study: a new approach to determine the reasons for transfusion in epidemiological studies 2009 ·Transfusion Medicine ·C. A. Llewelyn, A. W. Wells, (unknown), Angela Casbard, (unknown), S. Ballard, Jackie Buck, (unknown), (unknown), L. M. Williamson	18
8	Creutzfeldt–Jakob disease and blood transfusion: results of the UK Transfusion Medicine Epidemiological Review study 2006 ·Vox Sanguinis ·Patricia E. Hewitt, C. A. Llewelyn, J. Mackenzie, Robert Will	249
9	Using patient‐identifiable data for epidemiological research 2004 ·Transfusion Medicine ·(unknown), C. A. Llewelyn, Tony Johnson, L. M. Williamson	4
10	Possible transmission of variant Creutzfeldt-Jakob disease by blood transfusion breakdown → 2004 ·The Lancet ·C. A. Llewelyn, (unknown), RSG Knight, Khaled Amar, Simon Cousens, J. Mackenzie, (unknown)	775
11	The contribution of transfusion to HCV infection in England 2002 ·Epidemiology and Infection ·Kate Soldan, Mary Ramsay, Andrew Robinson, H Harris, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Patricia E. Hewitt, Nicola Hewson, Denis Jones, C. A. Llewelyn, Elizabeth M. Love, (unknown), Vanessa Martlew, (unknown)	14
12	Solvent/detergent fresh frozen plasma as primary treatment of acute thrombotic thrombocytopenic purpura 1999 ·Clinical & Laboratory Haematology ·D. Gareth Evans, C. A. Llewelyn, R. Luddington, Trevor Baglin, L. M. Williamson	32
13	A randomized trial of solvent/detergent‐treated and standard fresh‐frozen plasma in the coagulopathy of liver disease and liver transplantation 1999 ·Transfusion ·L. M. Williamson, C. A. Llewelyn, Neil Fisher, Jean Pierre Allain, Mark C. Bellamy, Trevor Baglin, (unknown), John R. Klinck, F. Ala, Nicholas L. Smith, James Neuberger, T. G. Wreghitt	97
14	A Randomized Trial of Solvent/Detergent and Standard Fresh Frozen Plasma in the Treatment of the Coagulopathy seen during Orthotopic Liver Transplantation 1998 ·Vox Sanguinis ·(unknown), L. M. Williamson, C. A. Llewelyn, (unknown), Jean‐Pierre Allain, Mark C. Bellamy, Trevor Baglin, (unknown), (unknown), Nicholas L. Smith, James Neuberger, T. G. Wreghitt	31
15	Influence of season and housing on ovarian activity of indigenous goats in Zimbabwe 1995 ·Tropical Animal Health and Production ·C. A. Llewelyn, (unknown), M. J. Obwolo	2
16	Oestrus in the british white goat: Timing of plasma luteinizing hormone surge and changes in behavioural and vaginal traits in relationship to onset of oestrus 1993 ·British Veterinary Journal ·C. A. Llewelyn, (unknown), A.G. Luckins, (unknown)	17
17	Oestrous synchronization and fertility following treatment with fluorogestone acetate (Chronolone) impregnated intra-vaginal sponges in indigenous goats of Zimbabwe 1992 ·C. A. Llewelyn, (unknown)	1
18	Plasma progesterone concentrations during pregnancy and pseudopregnancy and onset of ovarian activityPost partum in indigenous goats in Zimbabwe 1992 ·Tropical Animal Health and Production ·C. A. Llewelyn, (unknown), M. J. Obwolo	14
19	The effects of Trypanosoma congolense infection on the oestrous cycle of the Boran cow 1988 ·British Veterinary Journal ·C. A. Llewelyn, (unknown), A.G. Luckins, (unknown), Max Murray, (unknown)	20
20	The effect of Trypanosoma congolense infection on the oestrous cycle of the goat 1987 ·British Veterinary Journal ·C. A. Llewelyn, A.G. Luckins, (unknown), (unknown)	13

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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