| Clinical Medicine · 3,709 listed authors (43.4%) |
| Cardiovascular System & Hematology | 371 | 4.3% | 146 | Mancia, Giuseppe #1,423 |
| Oncology & Carcinogenesis | 369 | 4.3% | 127 | La Vecchia, Carlo #1,008 |
| Neurology & Neurosurgery | 342 | 4.0% | 139 | Beghi, Ettore #784 |
| Gastroenterology & Hepatology | 205 | 2.4% | 76 | Danese, Silvio #1,015 |
| Surgery | 187 | 2.2% | 26 | Mazzaferro, Vincenzo Maria #5,923 |
| Immunology | 183 | 2.1% | 72 | Mantovani, Alberto R. #328 |
| Dentistry | 180 | 2.1% | 35 | Isola, Gaetano #4,804 |
| Obstetrics & Reproductive Medicine | 154 | 1.8% | 30 | Corona, Giovanni #9,977 |
| Pharmacology & Pharmacy | 152 | 1.8% | 14 | Izzo, Angelo A. #14,042 |
| Urology & Nephrology | 133 | 1.6% | 37 | Ronco, Claudio #1,287 |
| Nuclear Medicine & Medical Imaging | 116 | 1.4% | 15 | Lencioni, Riccardo Antonio #8,882 |
| Endocrinology & Metabolism | 114 | 1.3% | 72 | Targher, Giovanni #1,235 |
| General & Internal Medicine | 106 | 1.2% | 18 | Schunemann, Holger J. #519 |
| Pediatrics | 88 | 1.0% | 8 | Buonsenso, Danilo #14,361 |
| Dermatology & Venereal Diseases | 86 | 1.0% | 14 | Marzano, Angelo Valerio #28,653 |
| Arthritis & Rheumatology | 74 | 0.9% | 24 | Cutolo, Maurizio #3,837 |
| Orthopedics | 71 | 0.8% | 16 | Longo, Umile Giuseppe #20,700 |
| General Clinical Medicine | 70 | 0.8% | 9 | Lippi, Giuseppe #1,575 |
| Otorhinolaryngology | 70 | 0.8% | 2 | Ferlito, Alfio Wo #18,674 |
| Ophthalmology & Optometry | 69 | 0.8% | 15 | Bandello, Francesco Maria #53,460 |
| Respiratory System | 60 | 0.7% | 22 | Richeldi, Luca K. #5,672 |
| Psychiatry | 55 | 0.6% | 39 | Serretti, Alessandro #5,506 |
| Anesthesiology | 50 | 0.6% | 7 | Mercadante, S. G. #13,943 |
| Emergency & Critical Care Medicine | 36 | 0.4% | 15 | Robba, Chiara #15,258 |
| Legal & Forensic Medicine | 30 | 0.4% | 1 | Cattaneo, Cristina Barbara #81,673 |
| Environmental & Occupational Health | 29 | 0.3% | 5 | Magǹavita, Nicola #21,214 |
| Pathology | 29 | 0.3% | 4 | La Rosa, Stefano #38,041 |
| Allergy | 21 | 0.2% | 9 | Giorgio Walter, Canonica Walter #19,222 |
| Geriatrics | 19 | 0.2% | 12 | Veronese, Nicola #2,308 |
| Sport Sciences | 17 | 0.2% | 9 | Marcora, Samuele Maria #8,454 |
| Tropical Medicine | 14 | 0.2% | 0 | Buonfrate, Dora #109,736 |
| Complementary & Alternative Medicine | 3 | 0.0% | 1 | Bellavite, Paolo #96,095 |
| Engineering · 781 listed authors (9.1%) |
| Electrical & Electronic Engineering | 142 | 1.7% | 9 | Saponara, Sergio #19,633 |
| Industrial Engineering & Automation | 127 | 1.5% | 45 | Bemporad, Alberto #5,338 |
| Mechanical Engineering & Transports | 109 | 1.3% | 27 | Carrera, Erasmo #1,192 |
| Biomedical Engineering | 76 | 0.9% | 12 | Merletti, Roberto #30,541 |
| Civil Engineering | 69 | 0.8% | 28 | Priestley, Michael John Nigel #5,145 |
| Environmental Engineering | 69 | 0.8% | 20 | Capodaglio, Andrea G. #9,336 |
| Aerospace & Aeronautics | 54 | 0.6% | 3 | Benini, Ernesto #48,274 |
| Geological & Geomatics Engineering | 48 | 0.6% | 27 | Vivone, Gemine #2,966 |
| Chemical Engineering | 34 | 0.4% | 11 | Drioli, Enrico #15,606 |
| Operations Research | 31 | 0.4% | 19 | De Giovanni, Pietro #4,609 |
| Automobile Design & Engineering | 6 | 0.1% | 0 | Bruni, Stefano #122,147 |
| Mining & Metallurgy | 3 | 0.0% | 0 | Vegliò, Francesco #104,203 |
| Physics & Astronomy · 772 listed authors (9.0%) |
| Nuclear & Particle Physics | 231 | 2.7% | 61 | Capozziello, Salvatore #999 |
| Applied Physics | 137 | 1.6% | 27 | Ielmini, Daniele #2,315 |
| Astronomy & Astrophysics | 96 | 1.1% | 55 | Madau, Piero #3,520 |
| Chemical Physics | 89 | 1.0% | 32 | Barone, Vincenzo #1,156 |
| General Physics | 65 | 0.8% | 20 | Giovannetti, Vittorio #7,835 |
| Fluids & Plasmas | 58 | 0.7% | 34 | De Domenico, Manlio #4,546 |
| Optics | 43 | 0.5% | 10 | Longhi, Stefano #953 |
| Acoustics | 33 | 0.4% | 6 | Tronchin, Lamberto #51,035 |
| Mathematical Physics | 8 | 0.1% | 2 | Bekiros, Stelios D. #27,901 |
| Chemistry · 540 listed authors (6.3%) |
| Medicinal & Biomolecular Chemistry | 161 | 1.9% | 28 | Supuran, Claudiu T. #769 |
| Analytical Chemistry | 106 | 1.2% | 26 | Neri, Giovanni #15,585 |
| Organic Chemistry | 90 | 1.1% | 28 | Cravotto, Giancarlo #10,492 |
| Polymers | 70 | 0.8% | 23 | Siracusa, V. M. #13,151 |
| Inorganic & Nuclear Chemistry | 54 | 0.6% | 11 | Sessoli, Roberta #10,982 |
| Physical Chemistry | 41 | 0.5% | 12 | Busca, Guido #2,600 |
| General Chemistry | 14 | 0.2% | 3 | Balzani, Vincenzo C. #25,934 |
| Biomedical Research · 511 listed authors (6.0%) |
| Biochemistry & Molecular Biology | 225 | 2.6% | 51 | Sandri, Marco F. #2,709 |
| Microbiology | 190 | 2.2% | 54 | Rappuoli, Paolo Costantino Rino #4,028 |
| Nutrition & Dietetics | 47 | 0.6% | 33 | Grosso, Giuseppe #1,500 |
| Toxicology | 43 | 0.5% | 11 | Costa, Lucio Guido #9,789 |
| Developmental Biology | 31 | 0.4% | 19 | Bianchi, Marco E. #9,238 |
| Genetics & Heredity | 28 | 0.3% | 4 | Ballabio, Andrea #5,412 |
| Virology | 22 | 0.3% | 3 | Antinori, Andrea #63,697 |
| Mycology & Parasitology | 16 | 0.2% | 5 | Otranto, Domenico #10,999 |
| Biophysics | 11 | 0.1% | 0 | Galdiero, Stefania #193,711 |
| Physiology | 11 | 0.1% | 3 | Narici, Marco Vincenzo #22,961 |
| Anatomy & Morphology | 8 | 0.1% | 2 | Alibardi, Lorenzo #69,439 |
| Enabling & Strategic Technologies · 504 listed authors (5.9%) |
| Energy | 207 | 2.4% | 66 | Siano, Pierluigi #2,285 |
| Materials | 145 | 1.7% | 47 | Baino, Francesco #5,950 |
| Optoelectronics & Photonics | 124 | 1.5% | 5 | Poggiolini, P. T. #34,767 |
| Strategic, Defence & Security Studies | 54 | 0.6% | 17 | Zio, Enrico E. #704 |
| Nanoscience & Nanotechnology | 21 | 0.2% | 21 | Manna, Liberato #4,554 |
| Biotechnology | 18 | 0.2% | 2 | Converti, Attílio #48,840 |
| Bioinformatics | 11 | 0.1% | 5 | Chicco, Davide #1,252 |
| Information & Communication Technologies · 402 listed authors (4.7%) |
| Artificial Intelligence & Image Processing | 226 | 2.6% | 73 | Verdoliva, Luisa #4,171 |
| Networking & Telecommunications | 135 | 1.6% | 32 | Conti, Mauro #9,487 |
| Computer Hardware & Architecture | 11 | 0.1% | 1 | Buttazzo, Giorgio Carlo #28,403 |
| Software Engineering | 11 | 0.1% | 3 | Palomba, Fabio #48,224 |
| Computation Theory & Mathematics | 5 | 0.1% | 1 | Trevisan, Luca #88,166 |
| Medical Informatics | 3 | 0.0% | 2 | Giorgino, Toni #23,336 |
| Distributed Computing | 2 | 0.0% | 0 | Cavazzoni, Carlo #440,951 |
| Information Systems | 2 | 0.0% | 2 | Raguseo, Elisabetta #40,936 |
| Agriculture, Fisheries & Forestry · 300 listed authors (3.5%) |
| Dairy & Animal Science | 89 | 1.0% | 11 | Dalle Zotte, Antonella #30,389 |
| Food Science | 79 | 0.9% | 38 | Daglia, Maria #3,798 |
| Veterinary Sciences | 54 | 0.6% | 3 | Fazio, Francesco #16,413 |
| Agronomy & Agriculture | 45 | 0.5% | 14 | Tarolli, Paolo #9,904 |
| Forestry | 25 | 0.3% | 2 | Chirici, Gherardo #86,504 |
| Fisheries | 11 | 0.1% | 1 | Carnevali, O. #86,960 |
| Horticulture | 3 | 0.0% | 0 | Poni, Stefano #140,474 |
| Biology · 262 listed authors (3.1%) |
| Plant Biology & Botany | 143 | 1.7% | 46 | Tuteja, Narendra #3,535 |
| Marine Biology & Hydrobiology | 48 | 0.6% | 18 | Danovaro, R. #5,514 |
| Entomology | 31 | 0.4% | 4 | Benelli, Giovanni #1,612 |
| Ecology | 29 | 0.3% | 28 | Ficetola, Gentile Francesco #13,847 |
| Zoology | 10 | 0.1% | 0 | Seinhorst, Jan Willem #111,515 |
| Ornithology | 2 | 0.0% | 0 | Fasola, Mauro #445,675 |
| Evolutionary Biology | 1 | 0.0% | 0 | Iamonico, Duilio #193,152 |
| Economics & Business · 173 listed authors (2.0%) |
| Business & Management | 96 | 1.1% | 95 | Chesbrough, Henry W. #838 |
| Economics | 26 | 0.3% | 26 | Guiso, Luigi #4,806 |
| Logistics & Transportation | 19 | 0.2% | 3 | Lo Presti, Davide #48,196 |
| Marketing | 7 | 0.1% | 7 | Scarpi de Claricini, Daniele #21,059 |
| Agricultural Economics & Policy | 4 | 0.0% | 4 | Santeramo, Fabio Gaetano #34,698 |
| Finance | 3 | 0.0% | 3 | Beck, Thorsten #716 |
| Accounting | 2 | 0.0% | 2 | Michelon, Giovanna #13,277 |
| Econometrics | 2 | 0.0% | 2 | Corsi, Fulvio #55,564 |
| Economic Theory | 2 | 0.0% | 1 | Marinacci, Massimo #80,789 |
| Sport, Leisure & Tourism | 2 | 0.0% | 2 | Baggio, Rodolfo #19,317 |
| Industrial Relations | 1 | 0.0% | 0 | Guerci, Marco #124,341 |
| Earth & Environmental Sciences · 168 listed authors (2.0%) |
| Environmental Sciences | 60 | 0.7% | 47 | Magazzino, Cosimo #2,180 |
| Geochemistry & Geophysics | 50 | 0.6% | 26 | Garzanti, Eduardo #2,947 |
| Meteorology & Atmospheric Sciences | 23 | 0.3% | 21 | Giorgi, Filippo #1,535 |
| Paleontology | 17 | 0.2% | 2 | Erba, Elisabetta #40,732 |
| Geology | 10 | 0.1% | 3 | Russell, Michael John #43,121 |
| Oceanography | 8 | 0.1% | 0 | Benetazzo, Alvise #136,217 |
| Mathematics & Statistics · 127 listed authors (1.5%) |
| General Mathematics | 89 | 1.0% | 26 | Mainardi, Francesco #2,884 |
| Applied Mathematics | 20 | 0.2% | 13 | Toro, Eleuterio F. #6,828 |
| Numerical & Computational Mathematics | 16 | 0.2% | 6 | Garrappa, Roberto #20,654 |
| Statistics & Probability | 7 | 0.1% | 7 | Giudici, Paolo S. #9,494 |
| Social Sciences · 88 listed authors (1.0%) |
| Political Science & Public Administration | 34 | 0.4% | 33 | Della Porta, Donatella D. #5,599 |
| Education | 9 | 0.1% | 4 | Moè, Angelica #34,843 |
| Law | 9 | 0.1% | 1 | Mantelero, Alessandro #60,367 |
| Geography | 8 | 0.1% | 8 | Tazzioli, Martina #11,675 |
| Sociology | 7 | 0.1% | 7 | Burt, Ronald S. #1,060 |
| Science Studies | 6 | 0.1% | 6 | Moed, Henk F. #21,036 |
| Criminology | 5 | 0.1% | 2 | Maniglio, Roberto #83,199 |
| Information & Library Sciences | 5 | 0.1% | 2 | Abramo, Giovanni #31,509 |
| Demography | 4 | 0.0% | 4 | Billari, Francesco C. #25,715 |
| International Relations | 3 | 0.0% | 3 | Checkel, Jeffrey T. #23,947 |
| Psychology & Cognitive Sciences · 84 listed authors (1.0%) |
| Experimental Psychology | 28 | 0.3% | 27 | Gallese, Vittorio #1,970 |
| Social Psychology | 17 | 0.2% | 16 | Caprara, Gian Vittorio #6,992 |
| Developmental & Child Psychology | 9 | 0.1% | 7 | Del Giudice, Marco #8,315 |
| Behavioral Science & Comparative Psychology | 7 | 0.1% | 3 | VALLORTIGARA, GIORGIO #16,019 |
| Clinical Psychology | 7 | 0.1% | 5 | Riva, Giuseppe #1,688 |
| Human Factors | 2 | 0.0% | 2 | Giaccardi, Elisa #42,131 |
| Psychoanalysis | 2 | 0.0% | 0 | Ferro, Antonino Maria #427,644 |
| General Psychology & Cognitive Sciences | 1 | 0.0% | 0 | Nota, Laura #202,346 |
| Public Health & Health Services · 43 listed authors (0.5%) |
| Nursing | 30 | 0.4% | 2 | Palese, Alvisa #71,489 |
| Rehabilitation | 18 | 0.2% | 2 | Negrini, Stefano #27,717 |
| Public Health | 11 | 0.1% | 6 | Stuckler, David #14,197 |
| Gerontology | 7 | 0.1% | 5 | Franceschi, Claudio #1,875 |
| Epidemiology | 6 | 0.1% | 1 | Michelozzi, Paola #96,606 |
| Health Policy & Services | 4 | 0.0% | 1 | Tarricone, Rosanna #56,561 |
| Substance Abuse | 1 | 0.0% | 1 | Buscema, Paolo Massimo #71,520 |
| Built Environment & Design · 38 listed authors (0.4%) |
| Design Practice & Management | 19 | 0.2% | 1 | Manzini, Ezio #93,886 |
| Building & Construction | 13 | 0.2% | 10 | Berardi, Umberto B. #1,248 |
| Urban & Regional Planning | 13 | 0.2% | 11 | Geneletti, Davide #8,218 |
| Architecture | 2 | 0.0% | 0 | Bevilacqua, Marco Giorgio #844,783 |
| Historical Studies · 22 listed authors (0.3%) |
| Archaeology | 13 | 0.2% | 0 | Gliozzo, Elisabetta #111,944 |
| History | 8 | 0.1% | 0 | Sluga, Glenda A. #102,467 |
| History of Social Sciences | 3 | 0.0% | 0 | Weisdorf, Jacob Louis #178,651 |
| Anthropology | 1 | 0.0% | 1 | Gualdi-Russo, Emanuela #90,745 |
| Classics | 1 | 0.0% | 0 | Most, Glenn W. #454,569 |
| History of Science, Technology & Medicine | 1 | 0.0% | 0 | Lippi, Donatella #607,289 |
| Communication & Textual Studies · 8 listed authors (0.1%) |
| Literary Studies | 5 | 0.1% | 0 | Stiegler, Bernard #226,971 |
| Communication & Media Studies | 4 | 0.0% | 4 | Gandini, Alessandro #15,129 |
| Languages & Linguistics | 2 | 0.0% | 2 | Barbieri, Marcello P. #74,120 |
| Philosophy & Theology · 5 listed authors (0.1%) |
| Philosophy | 2 | 0.0% | 0 | Sangiovanni, Andrea #122,312 |
| Applied Ethics | 1 | 0.0% | 1 | Umbrello, Steven #67,663 |
| Religions & Theology | 1 | 0.0% | 0 | Evolvi, Giulia #169,245 |