Recently in dermatology, the most influential scientists were reported [1,2]. Similarly, after analyzing the publications over 10 years (2011-2020), the top authors in the Journal of the American Academy of Dermatology (JAAD) were also described [3]. In this letter, we are reporting for the first time the top three authors in three world-class journals (ie, JAAD, JAMA Dermatology [JAMA-D], and American Journal of Clinical Dermatology [AJCD]). On July 24, 2022, the data was retrieved from the Scopus database, and the analysis was performed on RStudio (Bibliometrix/Biblioshiny) software (RStudio, PBC). We only analyzed research articles and excluded the year 2022. Scopus has been covering JAAD, JAMA-D and AJCD since 1979, 2013 and 2000, respectively. In total:
JAAD published 17,065 research articles. A total of 93 authors published at least 30 articles (for a total of 2732 articles). In these publications, the authors were from 2307 universities in 65 countries.
JAMA-D has published 1200 articles, of which 5975 authors from 1900 universities in 56 countries have contributed.
AJCD has published 492 articles. In all publications, 1866 authors were from 838 universities in 45 countries.
During the analysis, authors were included from JAMA-D and AJCD if they had published at least 5 research articles.
There are several bibliometric indicators that can be used for analysis. For example, the h-index considers both the number of publications and citations. In other words, a dermatologist with 5 articles with 5 or more citations (each) will have an h-index of 5. The g-index is another interesting indicator. It represents the highest number “g” of articles that together received g2 or more citations. A g-index of 10 indicates that the top 10 publications have been cited at least 100 times (102). The m-quotient (or m-index) considers both the h-index and the number of years. The m-index can be obtained by dividing the h-index by the number of years since the first publication of an author. For example, an h-index of 10 for an individual over 5 years means that the m-quotient is 2.
Our results differed from earlier reports [1-3], as they ranked the authors on the basis of the total number of publications and the h-index. We highlighted the most influential authors in all 3 journals on the basis of the total number of publications, total citations, h-index, g-index, and m-index. The data is presented in Table 1. We also provide the list of the top 10 most productive universities and countries (Table 2).
Table 1.
The list of the top 3 authors in JAAD, AJCD, and JAMA-D.a
| Number of publications | Total citation | H-index | G-index | M-index | |
| JAADb,c | |||||
| Feldman SR (n=127) | Feldman SR (n=12,778) | Lebwohl M (55) | Feldman SR (112) | Gelfand JM (1.895) | |
| Lebwohl M (n=108) | Lebwohl M (n=10,127) | Feldman SR (48) | Lebwohl M (100) | Patel KR (1.8) | |
| Paller AS (n=77) | Menter A (n=7754) | Gottlieb AB (39) | Paller AS (77) | Silverberg JI (1.769) | |
| AJCDd,e | |||||
| Piérard GE (n=10) | Silverberg JI (n=260) | Silverberg JI (8) | Piérard GE (10) | Simpson EL (1.75) | |
| Silverberg JI (n=9) | Armstrong AW (n=244) | Armstrong AW (8) | Silverberg JI (9) | Chen Z (1.25) | |
| Armstrong AW (n=9) | Feldman SR (n=218) | Feldman SR (7) | Armstrong AW (9) | Paller AS (1.25) | |
| JAMA-Df,g | |||||
| Mostaghimi A (n=30) | Margolis DJ (n=1159) | Armstrong AW (15) | Mostaghimi A (24) | Mostaghimi A (2) | |
| Marghoob AA (n=21) | Schmults CD (n=1088) | Margolis DJ (14) | Marghoob AA (21) | Armstrong AW (1.5) | |
| Margolis DJ (n=20) | Weinstock MA (n=1067) | Marghoob AA (14) | Margolis DJ (20) | Tkachenko E (1.5) | |
aThe ranking is based on the number of publications, total citations, h-index, g-index, and m-index. The data was retrieved from Scopus on July 28, 2022, and analyzed on RStudio (Bibliometrix/Biblioshiny).
bJAAD: Journal of the American Academy of Dermatology.
cTotal publications: 26,185; total citations: 566,620 (citations of 20,000 documents); total h-index: 242 (of 20,000 documents); Impact Factor (2021): 15.48; CiteScore: 8.1; Scientific Journal Ranking (SJR; 2021): 1.948; Source-normalized Impact per Paper (SNIP; 2021): 2.512.
dAJCD: American Journal of Clinical Dermatology.
eTotal publications: 1418; total citations: 46,803; total h-index: 99; Impact Factor (2021): 6.23; CiteScore: 12.1; SJR (2021): 1.956; SNIP (2021): 3.024.
fJAMA-D: JAMA Dermatology.
gTotal publications: 3544; total citations: 46,377; total h-index: 82; Impact Factor (2021): 11.8; CiteScore: 12.5; SJR (2021): 2.412; SNIP (2021): 3.658.
Table 2.
List of the top 10 most productive universities and countries.
| Universities | Publications, n | Country | Publications, n | |
| Journal of the American Academy of Dermatology (top 10 universities and countries) | ||||
| Mayo Clinic | 171 | United States | 2395 | |
| Northwestern University Feinberg School of Medicine | 162 | Italy | 155 | |
| Harvard Medical School | 144 | Canada | 146 | |
| University of Pennsylvania | 141 | Germany | 118 | |
| Icahn School of Medicine at Mount Sinai | 134 | Israel | 88 | |
| University of Pennsylvania Perelman School of Medicine | 131 | Austria | 65 | |
| University of California, San Francisco | 126 | United Kingdom | 64 | |
| Wake Forest School of Medicine | 113 | Japan | 58 | |
| Massachusetts General Hospital | 110 | France | 55 | |
| Memorial Sloan-Kettering Cancer Center | 87 | Spain | 45 | |
| American Journal of Clinical Dermatology (top 10 universities and countries) | ||||
| Harvard Medical School | 94 | United States | 778 | |
| University of Pennsylvania | 74 | France | 96 | |
| Brigham and Women's Hospital | 73 | United Kingdom | 78 | |
| University of California, San Francisco | 64 | Germany | 71 | |
| University of Pennsylvania Perelman School of Medicine | 57 | Spain | 65 | |
| Northwestern University | 56 | Australia | 62 | |
| Northwestern University Feinberg School of Medicine | 54 | Canada | 57 | |
| Memorial Sloan-Kettering Cancer Center | 48 | Italy | 50 | |
| Massachusetts General Hospital | 40 | Netherlands | 46 | |
| Inserm | 37 | Denmark | 43 | |
| JAMA Dermatology (top 10 universities and countries) | ||||
| Northwestern University Feinberg School of Medicine | 17 | United States | 206 | |
| Icahn School of Medicine at Mount Sinai | 15 | Germany | 46 | |
| Centre Hospitalier Universitaire de Liege | 13 | Italy | 37 | |
| University of Texas MD Anderson Cancer Center | 11 | Turkey | 35 | |
| University of Toronto | 11 | Canada | 33 | |
| Friedrich-Schiller-Universität Jena | 11 | United Kingdom | 29 | |
| Springer Nature | 11 | France | 24 | |
| Ankara Numune Education and Research Hospital | 10 | New Zealand | 24 | |
| Harvard Medical School | 10 | Belgium | 19 | |
| University of Southern California | 10 | Spain | 18 | |
The major limitations of this letter are name changes (variations in initials) and duplication of common names (authors and universities), which are not addressed. This may affect the ranking. We only relied on Scopus; other databases were not included in this study.
Abbreviations
- AJCD
American Journal of Clinical Dermatology
- JAAD
Journal of the American Academy of Dermatology
- JAMA-D
JAMA Dermatology
Footnotes
Conflicts of Interest: None declared.
References
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