Charles E. Leonard

3.3k total citations
127 papers, 2.3k citations indexed

About

Charles E. Leonard is a scholar working on Cardiology and Cardiovascular Medicine, Geriatrics and Gerontology and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Charles E. Leonard has authored 127 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Cardiology and Cardiovascular Medicine, 26 papers in Geriatrics and Gerontology and 22 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Charles E. Leonard's work include Pharmaceutical Practices and Patient Outcomes (26 papers), Atrial Fibrillation Management and Outcomes (17 papers) and Pharmacovigilance and Adverse Drug Reactions (16 papers). Charles E. Leonard is often cited by papers focused on Pharmaceutical Practices and Patient Outcomes (26 papers), Atrial Fibrillation Management and Outcomes (17 papers) and Pharmacovigilance and Adverse Drug Reactions (16 papers). Charles E. Leonard collaborates with scholars based in United States, United Kingdom and Canada. Charles E. Leonard's co-authors include Sean Hennessy, Warren B. Bilker, Brian L. Strom, Cristin P Freeman, Colleen Brensinger, Ole Hoffstad, Stephen E. Kimmel, David J. Margolis, John H. Holmes and Lyle Ungar and has published in prestigious journals such as Annals of Internal Medicine, PLoS ONE and Diabetes Care.

In The Last Decade

Charles E. Leonard

122 papers receiving 2.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Charles E. Leonard United States	26	516	394	320	268	227	127	2.3k
Mariam Molokhia United Kingdom	30	556 1.1×	454 1.2×	380 1.2×	413 1.5×	489 2.2×	89	3.8k
Jamie J. Coleman United Kingdom	30	324 0.6×	273 0.7×	561 1.8×	507 1.9×	192 0.8×	150	3.1k
Raymond G. Schlienger Switzerland	34	759 1.5×	332 0.8×	565 1.8×	727 2.7×	379 1.7×	81	4.0k
Katia Verhamme Netherlands	39	601 1.2×	225 0.6×	648 2.0×	349 1.3×	258 1.1×	170	5.5k
Susana Perez‐Gutthann United States	30	864 1.7×	584 1.5×	848 2.6×	138 0.5×	257 1.1×	80	5.1k
Andreas Sönnichsen Germany	29	635 1.2×	377 1.0×	280 0.9×	825 3.1×	97 0.4×	108	2.8k
Francesco Lapi Italy	33	507 1.0×	559 1.4×	469 1.5×	307 1.1×	98 0.4×	163	4.2k
John R. Horn United States	26	336 0.7×	135 0.3×	716 2.2×	431 1.6×	236 1.0×	118	2.8k
Adrianne C. Feldstein United States	32	349 0.7×	346 0.9×	724 2.3×	532 2.0×	88 0.4×	76	4.1k
Giampiero Mazzaglia Italy	37	1.1k 2.1×	337 0.9×	458 1.4×	536 2.0×	475 2.1×	148	4.5k

Countries citing papers authored by Charles E. Leonard

Since Specialization

Citations

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

Fields of papers citing papers by Charles E. Leonard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles E. Leonard. 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 Charles E. Leonard. The network helps show where Charles E. Leonard may publish in the future.

Co-authorship network of co-authors of Charles E. Leonard

This figure shows the co-authorship network connecting the top 25 collaborators of Charles E. Leonard. A scholar is included among the top collaborators of Charles E. Leonard 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 Charles E. Leonard. Charles E. Leonard 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

King, Aaron A., Xi Tan, Neil Dhopeshwarkar, et al.. (2025). Effect of glucagon-like peptide-1 receptor agonists on vascular risk factors among adults with type 2 diabetes and established atherosclerotic cardiovascular disease. American Journal of Preventive Cardiology. 21. 100922–100922. 2 indexed citations

Hsu, Yu‐Chia, Ashish P. Thakrar, Charles E. Leonard, et al.. (2025). Trends in Methadone Use for Pain and Opioid Use Disorder Among Medicaid Enrollees. JAMA Health Forum. 6(11). e255023–e255023.

Chen, Cheng, Sean Hennessy, Colleen Brensinger, et al.. (2024). Comparative Risk of Injury with Concurrent Use of Opioids and Skeletal Muscle Relaxants. Clinical Pharmacology & Therapeutics. 116(1). 117–127. 2 indexed citations

Whitworth, Hilary, Lauren A. Beslow, Rebecca A. Hubbard, et al.. (2023). Outcomes in infants with unprovoked venous thromboembolism: A retrospective cohort study. Research and Practice in Thrombosis and Haemostasis. 7(4). 100174–100174.

Dhopeshwarkar, Neil, Wei Yang, Sean Hennessy, et al.. (2023). Combining Super Learner with high‐dimensional propensity score to improve confounding adjustment: A real‐world application in chronic lymphocytic leukemia. Pharmacoepidemiology and Drug Safety. 33(1). e5678–e5678. 1 indexed citations

Kyle, Jeffrey A., et al.. (2022). Evaluating the Impact of a Pharmacist-Led Antimicrobial Stewardship Intervention at Discharge in a Community, Nonteaching Hospital. Annals of Pharmacotherapy. 57(3). 292–299. 2 indexed citations

Dawwas, Ghadeer K., James Flory, Sean Hennessy, Charles E. Leonard, & James D. Lewis. (2022). Comparative Safety of Sodium–Glucose Cotransporter 2 Inhibitors Versus Dipeptidyl Peptidase 4 Inhibitors and Sulfonylureas on the Risk of Diabetic Ketoacidosis. Diabetes Care. 45(4). 919–927. 14 indexed citations

Miano, Todd A., Lei Wang, Charles E. Leonard, et al.. (2022). Identifying Clinically Relevant Drug–Drug Interactions With Methadone and Buprenorphine: A Translational Approach to Signal Detection. Clinical Pharmacology & Therapeutics. 112(5). 1120–1129. 16 indexed citations

Flory, James, et al.. (2021). Compared to commercially insured patients, Medicare advantage patients adopt newer diabetes drugs more slowly and adhere to them less. Endocrinology Diabetes & Metabolism. 4(3). e00245–e00245. 5 indexed citations

10.

Leonard, Charles E., et al.. (2021). Pharmacosafety of fluoroquinolone and macrolide antibiotics in the clinical care of patients with myasthenia gravis. Muscle & Nerve. 64(2). 156–162. 5 indexed citations

11.

Re, Vincent Lo, Dena M. Carbonari, Jerry Jacob, et al.. (2021). Validity of ICD‐10‐CM diagnoses to identify hospitalizations for serious infections among patients treated with biologic therapies. Pharmacoepidemiology and Drug Safety. 30(7). 899–909. 18 indexed citations

12.

Dawwas, Ghadeer K., Sean Hennessy, Colleen Brensinger, et al.. (2021). Comparative Safety of Dipeptidyl Peptidase‐4 Inhibitors and Sudden Cardiac Arrest and Ventricular Arrhythmia: Population‐Based Cohort Studies. Clinical Pharmacology & Therapeutics. 111(1). 227–242. 2 indexed citations

13.

Ammann, Eric M., Elizabeth A. Chrischilles, Ryan M. Carnahan, et al.. (2021). Self-controlled assessment of thromboembolic event (TEE) risk following intravenous immune globulin (IGIV) in the U.S. (2006–2012). Journal of Thrombosis and Thrombolysis. 53(2). 264–272. 3 indexed citations

14.

Chen, Yong, et al.. (2020). Does hospitalization for thromboembolism improve oral anticoagulant adherence in patients with atrial fibrillation?. Journal of the American Pharmacists Association. 60(6). 986–992.e2. 2 indexed citations

15.

Dawwas, Ghadeer K., Charles E. Leonard, Scott Martin Vouri, et al.. (2020). Twelve‐year trends in pharmacologic treatment of type 2 diabetes among patients with heart failure in the United States. Diabetes Obesity and Metabolism. 22(4). 705–710. 3 indexed citations

16.

Chen, Yong, et al.. (2020). Impact of Hospitalization and Medication Switching on Post‐discharge Adherence to Oral Anticoagulants in Patients With Atrial Fibrillation. Pharmacotherapy The Journal of Human Pharmacology and Drug Therapy. 40(10). 1022–1035. 5 indexed citations

17.

Singh, Sonal, Hassan Fouayzi, Jea Young Min, et al.. (2018). Diagnostic Algorithms for Cardiovascular Death in Administrative Claims Databases: A Systematic Review. Drug Safety. 42(4). 515–527. 13 indexed citations

18.

Strom, Brian L., Rita Schinnar, J. K. N. Jones, et al.. (2011). Detecting pregnancy use of non-hormonal category X medications in electronic medical records. Journal of the American Medical Informatics Association. 18(Supplement 1). i81–i86. 10 indexed citations

19.

Jiang, Shiqin, Jia Jia, Yuanyuan Shang, et al.. (2010). Selected Abstracts Submitted to the 2nd International Cancer Fatigue Symposium: Putting the Pieces Together. Current Oncology. 17(5). 78–83. 1 indexed citations

20.

Mutton, David, Eva Alberman, Martin Bobrow, et al.. (1992). Abstracts of the annual scientific meeting of the Association of Clinical Cytogeneticists held on 3 to 5 July 1991 at Earnshaw Hall, Sheffield. Journal of Medical Genetics. 29(3). 203–213. 1 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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