M Nellen

746 total citations
38 papers, 516 citations indexed

About

M Nellen is a scholar working on Cardiology and Cardiovascular Medicine, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, M Nellen has authored 38 papers receiving a total of 516 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Cardiology and Cardiovascular Medicine, 15 papers in Pulmonary and Respiratory Medicine and 12 papers in Epidemiology. Recurrent topics in M Nellen's work include Congenital Heart Disease Studies (10 papers), Cardiac Valve Diseases and Treatments (9 papers) and Pulmonary Hypertension Research and Treatments (6 papers). M Nellen is often cited by papers focused on Congenital Heart Disease Studies (10 papers), Cardiac Valve Diseases and Treatments (9 papers) and Pulmonary Hypertension Research and Treatments (6 papers). M Nellen collaborates with scholars based in South Africa, United Kingdom and United States. M Nellen's co-authors include V. Schrire, L. Vogelpoel, A. Swanepoel, Walter Beck, M. J. Raphael, Galal M. Ziady, C M Oakley, Christopher Chew, W. P. U. Jackson and Mervyn S. Gotsman and has published in prestigious journals such as The Lancet, The American Journal of Cardiology and American Heart Journal.

In The Last Decade

M Nellen

37 papers receiving 433 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
M Nellen South Africa	14	262	243	153	144	54	38	516
Richard H. Blank United States	12	141 0.5×	146 0.6×	118 0.8×	94 0.7×	33 0.6×	20	318
E Merikallio Finland	11	163 0.6×	96 0.4×	126 0.8×	102 0.7×	10 0.2×	49	410
Jane Howard United States	13	310 1.2×	122 0.5×	121 0.8×	200 1.4×	27 0.5×	19	422
A Gerbaux France	9	322 1.2×	86 0.4×	134 0.9×	52 0.4×	93 1.7×	81	442
Costas Kourouklis Greece	5	387 1.5×	156 0.6×	71 0.5×	56 0.4×	17 0.3×	10	451
J E Morch Canada	10	318 1.2×	132 0.5×	123 0.8×	150 1.0×	7 0.1×	20	454
D A Ott United States	10	181 0.7×	187 0.8×	214 1.4×	76 0.5×	10 0.2×	27	397
C.-F. Wippermann Germany	10	96 0.4×	101 0.4×	114 0.7×	133 0.9×	18 0.3×	17	331
Faustino Pennestrì Italy	13	378 1.4×	79 0.3×	194 1.3×	119 0.8×	17 0.3×	37	537
Dawn Bond Cyprus	11	165 0.6×	112 0.5×	110 0.7×	70 0.5×	26 0.5×	17	359

Countries citing papers authored by M Nellen

Since Specialization

Citations

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

Fields of papers citing papers by M Nellen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M Nellen

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

Nellen, M. (2010). Idiopathic Pulmonary Hypertension. Elsevier eBooks. 21(18). 408–410.

Davies, Jonathan, M Nellen, & J. F. Goodwin. (1982). Reversible pulmonary hypertension in sarcoidosis. Postgraduate Medical Journal. 58(679). 282–285. 20 indexed citations

Nellen, M, et al.. (1979). Aortic valve replacement in a case of Ehlers Danlos syndrome.. Heart. 42(1). 103–105. 6 indexed citations

Nellen, M. (1970). Diazoxide in the treatment of hypertension.. PubMed. 44(5). 106–8. 5 indexed citations

Nellen, M, Mervyn S. Gotsman, & V. Schrire. (1968). The influence of certain drugs and of prompt squatting on the systolic murmur in hypertrophic obstructive cardiomyopathy. American Heart Journal. 76(2). 295–296. 4 indexed citations

Nellen, M, Mervyn S. Gotsman, L. Vogelpoel, Walter Beck, & V. Schrire. (1967). Effects of prompt squatting on the systolic murmur in idiopathic hypertrophic obstructive cardiomyopathy.. BMJ. 3(5558). 140–143. 30 indexed citations

Mg, Moshal, M Nellen, & Peter I. Folb. (1967). Diphenylhydantoin sodium in cardiac arrhythmia.. PubMed. 41(15). 389–91. 2 indexed citations

Jackson, W. P. U. & M Nellen. (1966). Effect of frusemide on carbohydrate metabolism, blood-pressure, and other modalities. A comparison with chlorothiazide.. BMJ. 2(5509). 333–336. 23 indexed citations

Schrire, V., L. Vogelpoel, Walter Beck, M Nellen, & A. Swanepoel. (1965). Ventricular septal defect: the clinical spectrum.. Heart. 27(6). 813–828. 14 indexed citations

10.

Beck, Walter, V. Schrire, L. Vogelpoel, M Nellen, & A. Swanepoel. (1961). CORRECTED TRANSPOSITION OF THE GREAT VESSELS. Heart. 23(5). 497–511. 16 indexed citations

11.

Schrire, V., L. Vogelpoel, Walter Beck, M Nellen, & A. Swanepoel. (1961). The effects of amyl nitrite and phenylephrine on the intracardiac murmurs of small ventricular septal defects. American Heart Journal. 62(2). 225–236. 11 indexed citations

12.

Vogelpoel, L., V. Schrire, Walter Beck, M Nellen, & A. Swanepoel. (1961). The atypical systolic murmur of minute ventricular septal defect and its recognition by amyl nitrite and phenylephrine. American Heart Journal. 62(1). 101–118. 27 indexed citations

13.

Swanepoel, A., V. Schrire, M Nellen, L. Vogelpoel, & C.N. Barnard. (1961). Traumatic aortico-right atrial fistula: Report of a case corrected by operation. American Heart Journal. 61(1). 120–125. 16 indexed citations

14.

Vogelpoel, L., et al.. (1960). The use of phenylephrine in the differentiation of Fallot's tetralogy from pulmonary stenosis with intact ventricular septum. American Heart Journal. 59(4). 489–505. 14 indexed citations

15.

Vogelpoel, L., M Nellen, A. Swanepoel, & V. Schrire. (1959). THE USE OF AMYL NITRITE IN THE DIAGNOSIS OF SYSTOLIC MURMURS. The Lancet. 274(7107). 810–817. 50 indexed citations

16.

Vogelpoel, L., V. Schrire, M Nellen, & A. Swanepoel. (1959). The use of amyl nitrite in the differentiation of Fallot's tetralogy and pulmonary stenosis with intact ventricular septum. American Heart Journal. 57(6). 803–819. 18 indexed citations

17.

Nellen, M, et al.. (1957). Pulmonary arteriovenous fistulae.. PubMed. 31(21). 504–14. 3 indexed citations

18.

Vogelpoel, L., et al.. (1955). Experience with mitral valvotomy at Groote Schuur Hospital, Cape Town.. PubMed. 29(48). 1108–14. 4 indexed citations

19.

Goetz, Robert H., M Nellen, V. Schrire, & L. Vogelpoel. (1955). The Clinical Value of Angiocardiography. Angiology. 6(2). 63–117. 3 indexed citations

20.

Nellen, M, et al.. (1953). Idiopathic dilatation of the pulmonary artery.. PubMed. 27(18). 360–7. 7 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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