W. Garry John

3.5k total citations · 1 hit paper
50 papers, 2.5k citations indexed

About

W. Garry John is a scholar working on Endocrinology, Diabetes and Metabolism, Cardiology and Cardiovascular Medicine and Molecular Biology. According to data from OpenAlex, W. Garry John has authored 50 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Endocrinology, Diabetes and Metabolism, 7 papers in Cardiology and Cardiovascular Medicine and 6 papers in Molecular Biology. Recurrent topics in W. Garry John's work include Diabetes Management and Research (22 papers), Diabetes, Cardiovascular Risks, and Lipoproteins (20 papers) and Hyperglycemia and glycemic control in critically ill and hospitalized patients (9 papers). W. Garry John is often cited by papers focused on Diabetes Management and Research (22 papers), Diabetes, Cardiovascular Risks, and Lipoproteins (20 papers) and Hyperglycemia and glycemic control in critically ill and hospitalized patients (9 papers). W. Garry John collaborates with scholars based in United Kingdom, United States and Sweden. W. Garry John's co-authors include Cas Weykamp, Andrea Mosca, Ian Goodall, Kor Miedema, Randie R. Little, Tadao Hoshino, David B. Sacks, Emma English, Jan‐Olof Jeppsson and Edmund J. Lamb and has published in prestigious journals such as JAMA, PLoS ONE and American Journal of Clinical Nutrition.

In The Last Decade

W. Garry John

50 papers receiving 2.3k 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.

IFCC Reference System for Measurement of Hemoglobin A1c in Human Blood and the National Standardization Schemes in the United States, Japan, and Sweden: A Method-Comparison Study

2004 561 citations Cas Weykamp, Ian Goodall et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
W. Garry John United Kingdom	24	1.5k	424	343	341	322	50	2.5k
J D England United States	25	2.0k 1.3×	632 1.5×	325 0.9×	512 1.5×	257 0.8×	37	3.0k
Curt L. Rohlfing United States	22	2.1k 1.4×	609 1.4×	251 0.7×	524 1.5×	314 1.0×	34	2.9k
Kor Miedema Netherlands	20	1.4k 0.9×	468 1.1×	226 0.7×	308 0.9×	997 3.1×	41	2.9k
Roberto Miccoli Italy	31	1.4k 0.9×	586 1.4×	332 1.0×	236 0.7×	545 1.7×	124	3.5k
Robbert J. Slingerland Netherlands	27	1.3k 0.9×	295 0.7×	197 0.6×	321 0.9×	697 2.2×	101	2.5k
Mauro Cignarelli Italy	29	879 0.6×	456 1.1×	419 1.2×	127 0.4×	391 1.2×	87	2.7k
Shariq Rashid Masoodi India	24	892 0.6×	373 0.9×	208 0.6×	328 1.0×	120 0.4×	120	2.4k
Charles Turner United Kingdom	31	360 0.2×	401 0.9×	332 1.0×	213 0.6×	223 0.7×	87	2.6k
Kwame Osei United States	31	1.6k 1.1×	496 1.2×	467 1.4×	494 1.4×	395 1.2×	108	2.9k
Beatriz Fernández‐Fernández Spain	29	508 0.3×	850 2.0×	231 0.7×	157 0.5×	302 0.9×	75	2.7k

Countries citing papers authored by W. Garry John

Since Specialization

Citations

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

Fields of papers citing papers by W. Garry John

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by W. Garry John. 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 W. Garry John. The network helps show where W. Garry John may publish in the future.

Co-authorship network of co-authors of W. Garry John

This figure shows the co-authorship network connecting the top 25 collaborators of W. Garry John. A scholar is included among the top collaborators of W. Garry John 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 W. Garry John. W. Garry John 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

Piec, Isabelle, Laura Cook, Samir Dervisevic, et al.. (2022). Age and vitamin D affect the magnitude of the antibody response to the first dose of the SARS-CoV-2 BNT162b2 vaccine. Current Research in Translational Medicine. 70(3). 103344–103344. 24 indexed citations

Piec, Isabelle, Emma English, Annette Thomas, et al.. (2021). Performance of SARS-CoV-2 serology tests: Are they good enough?. PLoS ONE. 16(2). e0245914–e0245914. 12 indexed citations

Butler, Alexandra E., Emma English, Eric S. Kilpatrick, et al.. (2020). Diagnosing type 2 diabetes using Hemoglobin A1c: a systematic review and meta-analysis of the diagnostic cutpoint based on microvascular complications. Acta Diabetologica. 58(3). 279–300. 14 indexed citations

Barron, Emma, Shivani Misra, Emma English, et al.. (2020). Experience of point-of-care HbA1c testing in the English National Health Service Diabetes Prevention Programme: an observational study. BMJ Open Diabetes Research & Care. 8(2). e001703–e001703. 9 indexed citations

Sampson, Michael, Allan Clark, Max Bachmann, et al.. (2020). Lifestyle Intervention With or Without Lay Volunteers to Prevent Type 2 Diabetes in People With Impaired Fasting Glucose and/or Nondiabetic Hyperglycemia. JAMA Internal Medicine. 181(2). 168–168. 34 indexed citations

Sampson, Mike, Max Bachmann, Allan Clark, et al.. (2018). Discordance in glycemic categories and regression to normality at baseline in 10,000 people in a Type 2 diabetes prevention trial. Scientific Reports. 8(1). 6240–6240. 13 indexed citations

English, Emma, et al.. (2015). The effect of anaemia and abnormalities of erythrocyte indices on HbA1c analysis: a systematic review. Diabetologia. 58(7). 1409–1421. 157 indexed citations

Hanås, Ragnar & W. Garry John. (2013). 2013 update on the worldwide standardization of the hemoglobin A1c measurement. Clinical Chemistry and Laboratory Medicine (CCLM). 51(5). 1041–2. 3 indexed citations

John, W. Garry. (2012). Use of HbA_1c in the diagnosis of diabetes mellitus in the UK. The implementation of World Health Organization guidance 2011. Diabetic Medicine. 29(11). 1350–1357. 75 indexed citations

10.

Bachmann, Max, et al.. (2012). Use of haemoglobin A1c to detect impaired fasting glucose or Type 2 diabetes in a United Kingdom community based population. Diabetes Research and Clinical Practice. 96(2). 211–216. 19 indexed citations

11.

John, W. Garry. (2012). Global standardisation of haemoglobin A1c using metrological principles. Clinical Biochemistry. 45(13-14). 1048–1050. 5 indexed citations

12.

John, W. Garry, Andrea Mosca, Cas Weykamp, & Ian Goodall. (2007). HbA1c standardisation: history, science and politics.. PubMed. 28(4). 163–8. 40 indexed citations

13.

John, W. Garry, Kate Noonan, Nasima Mannan, & Barbara J. Boucher. (2005). Hypovitaminosis D is associated with reductions in serum apolipoprotein A-I but not with fasting lipids in British Bangladeshis. American Journal of Clinical Nutrition. 82(3). 517–522. 23 indexed citations

14.

Manley, Susan E., W. Garry John, & Sally M. Marshall. (2004). Introduction of IFCC reference method for calibration of HbA_1c: implications for clinical care. Diabetic Medicine. 21(7). 673–676. 17 indexed citations

15.

John, W. Garry. (2003). Haemoglobin A1c: Analysis and Standardisation. Clinical Chemistry and Laboratory Medicine (CCLM). 41(9). 1199–212. 60 indexed citations

16.

John, W. Garry & Edmund J. Lamb. (1993). The maillard or browning reaction in diabetes. Eye. 7(2). 230–237. 78 indexed citations

17.

John, W. Garry, et al.. (1992). Methods for the Analysis of Glycated Haemoglobins: What is Being Measured?. Diabetic Medicine. 9(1). 15–19. 22 indexed citations

18.

Robertson, Debra, F. K. E. Tunbridge, W. Garry John, Philip Home, & K. G. M. M. Alberti. (1992). Diagnostic confusion in diabetes with persistence of fetal haemoglobin.. BMJ. 305(6854). 635–637. 7 indexed citations

19.

Marenah, C B, et al.. (1990). Glycated Haemoglobin and Fructosamine in Non-Diabetic Subjects with Chronic Renal Failure. Nephrology Dialysis Transplantation. 5(10). 868–873. 15 indexed citations

20.

John, W. Garry. (1987). Glycated Haemoglobin Analyses—Assessment of within- and between-Laboratory Performance in a Large UK Region. Annals of Clinical Biochemistry International Journal of Laboratory Medicine. 24(5). 453–460. 18 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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