Ragnar Hol

492 total citations
18 papers, 354 citations indexed

About

Ragnar Hol is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Ragnar Hol has authored 18 papers receiving a total of 354 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Pulmonary and Respiratory Medicine, 5 papers in Surgery and 4 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Ragnar Hol's work include Vascular Procedures and Complications (3 papers), Fish biology, ecology, and behavior (3 papers) and Physiological and biochemical adaptations (3 papers). Ragnar Hol is often cited by papers focused on Vascular Procedures and Complications (3 papers), Fish biology, ecology, and behavior (3 papers) and Physiological and biochemical adaptations (3 papers). Ragnar Hol collaborates with scholars based in Norway, United States and Singapore. Ragnar Hol's co-authors include Harald Arnesen, B. Ly, Harald Eie, Kjell Johansen, Arnoldus Schytte Blix, Robert Elsner, John Kjekshus, E. Amundsen, R Ingebrigtsen and Gudmund Semb and has published in prestigious journals such as Circulation Research, The Journal of Urology and Journal of Experimental Biology.

In The Last Decade

Ragnar Hol

17 papers receiving 297 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ragnar Hol Norway	11	161	149	102	76	54	18	354
DC Jackson United Kingdom	7	82 0.5×	138 0.9×	165 1.6×	124 1.6×	37 0.7×	11	434
David Jiménez United States	10	87 0.5×	88 0.6×	72 0.7×	90 1.2×	7 0.1×	37	321
John Davis United States	11	279 1.7×	29 0.2×	33 0.3×	246 3.2×	46 0.9×	23	566
Santiago Rodríguez García United States	8	165 1.0×	10 0.1×	70 0.7×	125 1.6×	18 0.3×	13	426
Lawrence J. Smith United States	11	89 0.6×	18 0.1×	27 0.3×	28 0.4×	18 0.3×	15	316
Pablo A. Guzmán United States	14	721 4.5×	18 0.1×	128 1.3×	308 4.1×	12 0.2×	23	981
Robert G. Fraser United States	12	200 1.2×	5 0.0×	399 3.9×	102 1.3×	58 1.1×	35	802
Peter Lewy United States	14	23 0.1×	8 0.1×	65 0.6×	56 0.7×	54 1.0×	32	426
Jacqueline Neubauer Switzerland	9	219 1.4×	110 0.7×	38 0.4×	48 0.6×	15 0.3×	27	417
H. J. Deutsch Germany	14	376 2.3×	9 0.1×	145 1.4×	141 1.9×	22 0.4×	42	644

Countries citing papers authored by Ragnar Hol

Since Specialization

Citations

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

Fields of papers citing papers by Ragnar Hol

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ragnar Hol

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

All Works

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18 of 18 papers shown

Arnesen, Harald, et al.. (1983). Successful treatment with selective intracoronary streptokinase in impending myocardial infarction. Scandinavian Journal of Haematology. 31(S39). 39–41. 1 indexed citations

Arnesen, Harald, et al.. (1983). Fibrinolytic capacity after venous stasis in patients undergoing aorto‐coronary by‐pass surgery. Relation to shunt occlusion. Scandinavian Journal of Haematology. 31(S39). 43–46. 18 indexed citations

Kjekshus, John, Arnoldus Schytte Blix, Robert Elsner, Ragnar Hol, & E. Amundsen. (1982). Myocardial blood flow and metabolism in the diving seal. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 242(1). R97–R104. 41 indexed citations

Kjekshus, John, Arnoldus Schytte Blix, Robert Elsner, R. W. Millard, & Ragnar Hol. (1981). THE MULTIFACTORIAL APPROACH TO MYOCARDIAL SALVAGE THE EXPERIENCE FROM DIVING SEALS. Acta Medica Scandinavica. 210(S651). 49–57. 2 indexed citations

Sivertssen, E, et al.. (1980). Myocardial Infarction after Aortocoronary Bypass Surgery.The Incidence in 187 Consecutive Patients and the Late Postoperative Significance. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 14(1). 67–76. 10 indexed citations

Ly, B., Harald Arnesen, Harald Eie, & Ragnar Hol. (1978). A Controlled Clinical Trial of Streptokinase and Heparin in the Treatment of Major Pulmonary Embolism. Acta Medica Scandinavica. 203(1-6). 465–470. 154 indexed citations

Blix, Arnoldus Schytte & Ragnar Hol. (1973). Ventricular Dilatation in the Diving Seal. Acta Physiologica Scandinavica. 87(3). 431–432. 5 indexed citations

Ingebrigtsen, R, et al.. (1973). Dilatation of the Ileo-Femoral Artery Following the Opening of an Experimental Arterio-Venous Fistula in the Dog. Scandinavian Journal of Clinical and Laboratory Investigation. 31(3). 255–262. 10 indexed citations

Lorentsen, E, Björn Hoel, & Ragnar Hol. (1972). EVALUATION OF THE FUNCTIONAL IMPORTANCE OF ATHEROSCLEROTIC OBLITERATIONS IN THE AORTO‐ILIAC ARTERY BY PRESSURE/FLOW MEASUREMENTS. Journal of Internal Medicine. 191(5). 399–403. 13 indexed citations

10.

Johansen, Kjell & Ragnar Hol. (1968). A radiological study of the central circulation in the lungfish, Protopterus aethiopicus. Journal of Morphology. 126(3). 333–348. 11 indexed citations

11.

Hol, Ragnar & R Ingebrigtsen. (1961). Experimental Arteriovenous Fistulae. Acta Radiologica. 55(5). 337–349. 9 indexed citations

12.

Weaver, Robert G. & Ragnar Hol. (1961). An Experimental Production of Hydronephrosis in the Dog. Urologia Internationalis. 11(3). 172–182. 1 indexed citations

13.

Johansen, Kjell & Ragnar Hol. (1960). A Cineradiographic Study of the Snake Heart. Circulation Research. 8(1). 253–259. 13 indexed citations

14.

Johansen, Kjell & Ragnar Hol. (1960). A Cineradiographic Study of Respiration inMyxine GlutinosaL. Journal of Experimental Biology. 37(3). 474–480. 16 indexed citations

15.

Hol, Ragnar. (1960). Tissue oxygen changes following contrast media injections. Acta Radiologica. 53(4). 266–272.

16.

Hol, Ragnar & Kjell Johansen. (1960). A Cineradiographic Study of the Central Circulation in the Hagfish, Myxine Glutinosa L. Journal of Experimental Biology. 37(3). 469–473. 15 indexed citations

17.

Weaver, Robert G. & Ragnar Hol. (1960). Hydronephrosis: An Experimental Production and a Study of Methods. The Journal of Urology. 83(4). 345–350. 4 indexed citations

18.

Hol, Ragnar, et al.. (1954). Spinal Cord Damage in Abdominal Aortography. Acta Radiologica. 42(4). 276–284. 31 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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