J. O. Parker

1.3k total citations
17 papers, 964 citations indexed

About

J. O. Parker is a scholar working on Cardiology and Cardiovascular Medicine, Physiology and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, J. O. Parker has authored 17 papers receiving a total of 964 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Cardiology and Cardiovascular Medicine, 4 papers in Physiology and 3 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in J. O. Parker's work include Cardiovascular Function and Risk Factors (5 papers), Cardiac electrophysiology and arrhythmias (3 papers) and Heart Rate Variability and Autonomic Control (3 papers). J. O. Parker is often cited by papers focused on Cardiovascular Function and Risk Factors (5 papers), Cardiac electrophysiology and arrhythmias (3 papers) and Heart Rate Variability and Autonomic Control (3 papers). J. O. Parker collaborates with scholars based in United States, Canada and Bulgaria. J. O. Parker's co-authors include Gary W. Burggraf, H L Fung, Udho Thadani, Paul W. Armstrong, J. Burton, Dante E. Manyari, Andrew C. Darke, Barry Rose, Bernice Farrell and Miguel A. Chiong and has published in prestigious journals such as Circulation, Journal of Clinical Investigation and European Heart Journal.

In The Last Decade

J. O. Parker

17 papers receiving 834 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J. O. Parker United States 11 696 293 240 214 123 17 964
P A Majid Netherlands 19 679 1.0× 351 1.2× 185 0.8× 77 0.4× 99 0.8× 33 1.0k
H Just Germany 13 620 0.9× 213 0.7× 105 0.4× 193 0.9× 57 0.5× 38 1.2k
W Rudolph Germany 15 541 0.8× 82 0.3× 119 0.5× 172 0.8× 82 0.7× 119 832
L Ceremuźyński Poland 17 1.1k 1.6× 229 0.8× 238 1.0× 146 0.7× 57 0.5× 76 1.5k
W.‐D. Bussmann Germany 18 823 1.2× 315 1.1× 285 1.2× 79 0.4× 65 0.5× 106 1.1k
W S Hillis United Kingdom 19 534 0.8× 195 0.7× 84 0.3× 106 0.5× 82 0.7× 55 971
Charles W. Crumpton United States 19 474 0.7× 234 0.8× 220 0.9× 128 0.6× 59 0.5× 68 1.1k
John J. Morton United Kingdom 22 1.5k 2.1× 261 0.9× 105 0.4× 127 0.6× 135 1.1× 46 2.0k
Stanley H. Taylor United Kingdom 19 686 1.0× 166 0.6× 94 0.4× 57 0.3× 93 0.8× 61 902
Antone F. Salel United States 18 648 0.9× 324 1.1× 318 1.3× 63 0.3× 51 0.4× 54 1.1k

Countries citing papers authored by J. O. Parker

Since Specialization
Citations

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

Fields of papers citing papers by J. O. Parker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. O. Parker. 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 J. O. Parker. The network helps show where J. O. Parker may publish in the future.

Co-authorship network of co-authors of J. O. Parker

This figure shows the co-authorship network connecting the top 25 collaborators of J. O. Parker. A scholar is included among the top collaborators of J. O. Parker 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 J. O. Parker. J. O. Parker is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

17 of 17 papers shown
1.
Chaitman, Bernard, Carl J. Pepine, & J. O. Parker. (2004). Effects of ranolazine with atenolol, amlodipine or diltiazem on exercise tolerance and angina frequency in patients with severe chronic angina: a randomized, controlled trial. ACC Current Journal Review. 13(4). 7–7. 30 indexed citations
3.
Parker, J. O.. (1992). Update on nitrate tolerance.. British Journal of Clinical Pharmacology. 34(S1). 11S–14S. 9 indexed citations
4.
Parker, J. O.. (1990). Nitrate tolerance. European Journal of Clinical Pharmacology. 38(S1). S21–S25. 9 indexed citations
5.
Parker, J. O., et al.. (1987). Nitrate tolerance: the lack of effect of N-acetylcysteine.. Circulation. 76(3). 572–576. 80 indexed citations
6.
Parker, J. O., et al.. (1983). Prolonged plasma half‐life after oral isosorbide dinitrate in patients with angina pectoris.. British Journal of Clinical Pharmacology. 15(6). 746–748. 8 indexed citations
7.
Parker, J. O., et al.. (1983). Tolerance to isosorbide dinitrate: rate of development and reversal.. Circulation. 68(5). 1074–1080. 116 indexed citations
8.
Darke, Andrew C., et al.. (1981). Kinetics of isosorbide dinitrate and relationships to pharmacological effects. British Journal of Clinical Pharmacology. 11(6). 579–590. 45 indexed citations
9.
Thadani, Udho, Dante E. Manyari, J. O. Parker, & H L Fung. (1980). Tolerance to the circulatory effects of oral isosorbide dinitrate. Rate of development and cross-tolerance to glyceryl trinitrate.. Circulation. 61(3). 526–535. 127 indexed citations
10.
Parker, J. O. & Udho Thadani. (1980). Cardiac performance at rest and during exercise in normal subjects.. PubMed. 15(5). 935–49. 23 indexed citations
11.
Thadani, Udho, H L Fung, Andrew C. Darke, & J. O. Parker. (1980). Oral isosorbide dinitrate in the treatment of angina pectoris. Dose-response relationship and duration of action during acute therapy.. Circulation. 62(3). 491–502. 74 indexed citations
12.
Thadani, Udho & J. O. Parker. (1978). Duration of action of propranolol in angina pectoris. The American Journal of Cardiology. 41(2). 426–426. 2 indexed citations
13.
Chiong, Miguel A., Roxroy O. West, & J. O. Parker. (1976). The protective effect of glucose-insulin-potassium on the response to atrial pacing.. Circulation. 54(1). 37–46. 30 indexed citations
14.
Emanuel, R, et al.. (1976). Syphilitic aortic regurgitation. An appraisal of surgical treatment.. Sexually Transmitted Infections. 52(6). 366–373. 5 indexed citations
15.
Burggraf, Gary W. & J. O. Parker. (1975). Prognosis in coronary artery disease. Angiographic, hemodynamic, and clinical factors.. Circulation. 51(1). 146–156. 245 indexed citations
16.
Armstrong, Paul W., et al.. (1975). Vasodilator therapy in acute myocardial infarction. A comparison of sodium nitroprusside and nitroglycerin.. Circulation. 52(6). 1118–1122. 139 indexed citations
17.
Rochester, Dudley F., et al.. (1961). ESTIMATION OF RIGHT VENTRICULAR OUTPUT IN MAN USING RADIOACTIVE KRYPTON (Kr85)*. Journal of Clinical Investigation. 40(4). 643–648. 19 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

Rankless by CCL
2026