| Clinical Medicine · 978 listed authors (36.5%) |
| General & Internal Medicine | 464 | 17.3% | 69 | Amiri, Sohrab #3,370 |
| Pharmacology & Pharmacy | 163 | 6.1% | 29 | Abdollahi, Mohammad #6,583 |
| Oncology & Carcinogenesis | 29 | 1.1% | 11 | Mirzaei, Hamed Reza #7,137 |
| Obstetrics & Reproductive Medicine | 25 | 0.9% | 3 | Jenabi, Ensiyeh #41,933 |
| Neurology & Neurosurgery | 24 | 0.9% | 5 | Asadi-Pooya, Ali Akbar #5,283 |
| Endocrinology & Metabolism | 16 | 0.6% | 9 | Azizi, Fereidoun #3,664 |
| Ophthalmology & Optometry | 16 | 0.6% | 2 | Hashemi, Hassan #43,939 |
| Dentistry | 15 | 0.6% | 2 | Asgary, Saeed #24,654 |
| Immunology | 13 | 0.5% | 6 | Rezaei, Nima A. #2,363 |
| Tropical Medicine | 10 | 0.4% | 1 | Abbasi, Ebrahim #98,618 |
| General Clinical Medicine | 9 | 0.3% | 0 | Movahedpour, Ahmad #189,103 |
| Dermatology & Venereal Diseases | 8 | 0.3% | 0 | Tavakolpour, Soheil #153,115 |
| Nuclear Medicine & Medical Imaging | 8 | 0.3% | 0 | Shalbaf, Ahmad #183,830 |
| Cardiovascular System & Hematology | 7 | 0.3% | 4 | Sarrafzadegan, Nizal S. #20,852 |
| Gastroenterology & Hepatology | 7 | 0.3% | 1 | Zali, Mohammad Reza #61,682 |
| Environmental & Occupational Health | 6 | 0.2% | 0 | Mohammadfam, Iraj M. #243,626 |
| Psychiatry | 5 | 0.2% | 4 | Akhondzadeh, Shahin H. #27,331 |
| Urology & Nephrology | 5 | 0.2% | 1 | Safarinejad, Mohammad Reza #64,563 |
| Orthopedics | 4 | 0.1% | 0 | Dommerholt, Jan D. #191,841 |
| Surgery | 4 | 0.1% | 0 | Geramizadeh, Bita #160,938 |
| Emergency & Critical Care Medicine | 3 | 0.1% | 1 | Yousefifard, Mahmoud #73,251 |
| Anesthesiology | 2 | 0.1% | 0 | Imani, Farnad #237,359 |
| Complementary & Alternative Medicine | 2 | 0.1% | 0 | Hashempur, Mohammad Hashem #183,528 |
| Respiratory System | 2 | 0.1% | 0 | Hashemian, Seyed Mohammad Reza #149,026 |
| Sport Sciences | 2 | 0.1% | 0 | Asadi, Abbas #126,258 |
| Arthritis & Rheumatology | 1 | 0.0% | 1 | Davatchi, Fereydoun #76,611 |
| Otorhinolaryngology | 1 | 0.0% | 0 | Saki, Nader #284,109 |
| Chemistry · 440 listed authors (16.4%) |
| Analytical Chemistry | 116 | 4.3% | 33 | Ghaedi, Mehrorang #10,837 |
| Polymers | 89 | 3.3% | 34 | Saberi-Riseh, Roohallah #8,538 |
| Medicinal & Biomolecular Chemistry | 80 | 3.0% | 13 | Sahebkar, Amirhossein #157 |
| Organic Chemistry | 74 | 2.8% | 19 | Nasrollahzadeh, Mahmoud #4,136 |
| Inorganic & Nuclear Chemistry | 46 | 1.7% | 10 | Shariatinia, Zahra #4,305 |
| General Chemistry | 19 | 0.7% | 1 | Saboury, Ali Akbar #30,553 |
| Engineering · 361 listed authors (13.5%) |
| Mechanical Engineering & Transports | 111 | 4.1% | 37 | Sheikholeslami, Mohsen #691 |
| Chemical Engineering | 70 | 2.6% | 30 | Mahmoodi, Niyaz Mohammad #2,375 |
| Electrical & Electronic Engineering | 55 | 2.1% | 6 | Babaei, Ebrahim #16,783 |
| Environmental Engineering | 30 | 1.1% | 12 | Nourani, Vahid #10,478 |
| Civil Engineering | 25 | 0.9% | 8 | Kaveh, Ali #405 |
| Geological & Geomatics Engineering | 25 | 0.9% | 13 | Sharifi, Alireza #10,989 |
| Operations Research | 17 | 0.6% | 7 | Taleizadeh, A. A. #14,108 |
| Biomedical Engineering | 15 | 0.6% | 3 | Kharaziha, Mahshid #46,861 |
| Mining & Metallurgy | 14 | 0.5% | 0 | Rashchi, Fereshteh #175,472 |
| Industrial Engineering & Automation | 10 | 0.4% | 5 | Shojaei, K. #29,546 |
| Aerospace & Aeronautics | 1 | 0.0% | 0 | Bahrami, Mohsen #247,537 |
| Enabling & Strategic Technologies · 324 listed authors (12.1%) |
| Energy | 176 | 6.6% | 73 | Rezaee Jordehi, Ahmad #2,780 |
| Materials | 112 | 4.2% | 38 | Salavati-Niasari, Masoud #1,425 |
| Optoelectronics & Photonics | 22 | 0.8% | 4 | Rezazadeh, Hadi #21,329 |
| Biotechnology | 16 | 0.6% | 3 | Homaei, Ahmad #29,480 |
| Nanoscience & Nanotechnology | 11 | 0.4% | 11 | Iravani, Siavash #570 |
| Strategic, Defence & Security Studies | 1 | 0.0% | 0 | Yaghmaei-Sabegh, Saman #190,597 |
| Agriculture, Fisheries & Forestry · 136 listed authors (5.1%) |
| Food Science | 72 | 2.7% | 40 | Jafari, Seid Mahdi #440 |
| Fisheries | 18 | 0.7% | 4 | Hossein Hoseinifar, Seyed Hossein #18,935 |
| Agronomy & Agriculture | 17 | 0.6% | 6 | Etesami, Hassan #2,669 |
| Veterinary Sciences | 11 | 0.4% | 1 | Oryan, Ahmad #24,305 |
| Dairy & Animal Science | 8 | 0.3% | 1 | Mohammadabadi, Mohammadreza Reza Mohammad #25,575 |
| Forestry | 3 | 0.1% | 0 | Kooch, Yahya #200,354 |
| Horticulture | 2 | 0.1% | 1 | Aghdam, Morteza Soleimani #26,394 |
| Physics & Astronomy · 108 listed authors (4.0%) |
| Applied Physics | 52 | 1.9% | 15 | Akhavan, Omid #2,090 |
| Chemical Physics | 36 | 1.3% | 17 | Nezamzadeh-Ejhieh, Alireza R. #9,046 |
| Nuclear & Particle Physics | 21 | 0.8% | 10 | Sheykhi, Ahmad #10,636 |
| Optics | 6 | 0.2% | 1 | Mirzazadeh, M. A. #50,655 |
| Acoustics | 5 | 0.2% | 0 | Aghababa, Mohammad Pourmahmood #147,988 |
| General Physics | 5 | 0.2% | 1 | Ghanbari, Behzad #19,731 |
| Fluids & Plasmas | 2 | 0.1% | 1 | Jafari, Sajad S. #70,040 |
| Mathematical Physics | 1 | 0.0% | 0 | Beigi, Salman #287,334 |
| Information & Communication Technologies · 91 listed authors (3.4%) |
| Artificial Intelligence & Image Processing | 53 | 2.0% | 22 | Gharehchopogh, Farhad Soleimanian #1,320 |
| Networking & Telecommunications | 25 | 0.9% | 5 | Hosseinzadeh, Mehdi #1,722 |
| Distributed Computing | 9 | 0.3% | 2 | Ghobaei-Arani, Mostafa #32,693 |
| Medical Informatics | 7 | 0.3% | 2 | Sheikhtaheri, Abbas #48,038 |
| Computation Theory & Mathematics | 1 | 0.0% | 0 | Akbari, Saieed #256,223 |
| Biomedical Research · 73 listed authors (2.7%) |
| Microbiology | 42 | 1.6% | 9 | Behzadi, Payam #20,298 |
| Nutrition & Dietetics | 31 | 1.2% | 8 | Asemi, Zatollah #15,656 |
| Biochemistry & Molecular Biology | 30 | 1.1% | 10 | Mortezaee, Keywan #3,644 |
| Mycology & Parasitology | 15 | 0.6% | 2 | Daryani, Ahamd #39,079 |
| Biophysics | 9 | 0.3% | 2 | Chamani, Jamshidkhan #62,710 |
| Toxicology | 8 | 0.3% | 0 | Mehri, Freshteh #139,580 |
| Virology | 3 | 0.1% | 1 | Bolhassani, Azam #35,739 |
| Developmental Biology | 2 | 0.1% | 2 | Mostafavi, Sara Mostafa #60,186 |
| Genetics & Heredity | 1 | 0.0% | 0 | Najmabadi, Hossein #289,216 |
| Earth & Environmental Sciences · 43 listed authors (1.6%) |
| Environmental Sciences | 39 | 1.5% | 30 | Pourghasemi, Hamid Reza #3,098 |
| Geochemistry & Geophysics | 4 | 0.1% | 1 | Yousefi, Mahyar #72,239 |
| Geology | 2 | 0.1% | 0 | Mehrabi, Hamzeh #189,883 |
| Meteorology & Atmospheric Sciences | 2 | 0.1% | 1 | Alizadeh, Omid #24,165 |
| Biology · 34 listed authors (1.3%) |
| Plant Biology & Botany | 34 | 1.3% | 11 | Ghorbanpour, Mansour #13,070 |
| Entomology | 4 | 0.1% | 0 | Ebadollahi, Asgar #167,973 |
| Mathematics & Statistics · 31 listed authors (1.2%) |
| General Mathematics | 13 | 0.5% | 2 | Jafari, Hossein #18,543 |
| Numerical & Computational Mathematics | 12 | 0.4% | 4 | Dehghan, M. #4,212 |
| Applied Mathematics | 6 | 0.2% | 2 | Rezapour, Shahram #41,500 |
| Public Health & Health Services · 19 listed authors (0.7%) |
| Nursing | 33 | 1.2% | 1 | Hasankhani, Hadi #74,281 |
| Public Health | 1 | 0.0% | 0 | Yoosefi lebni, Javad #155,274 |
| Rehabilitation | 1 | 0.0% | 0 | Nakhostin Ansari, Noureddin #152,817 |
| Substance Abuse | 1 | 0.0% | 1 | Armoon, Bahram #69,995 |
| Built Environment & Design · 14 listed authors (0.5%) |
| Building & Construction | 13 | 0.5% | 5 | Arabani, Mahyar P. #20,518 |
| Design Practice & Management | 2 | 0.1% | 0 | Safarpour, Mehran #293,103 |
| Urban & Regional Planning | 2 | 0.1% | 2 | Khavarian-Garmsir, Amir Reza #68,086 |
| Economics & Business · 12 listed authors (0.4%) |
| Business & Management | 8 | 0.3% | 8 | Salehi, Mahdi #25,743 |
| Logistics & Transportation | 2 | 0.1% | 1 | Keshavarz-Ghorabaee, Mehdi #13,467 |
| Economics | 1 | 0.0% | 1 | Rasoulinezhad, Ehsan #17,357 |
| Social Sciences · 9 listed authors (0.3%) |
| Education | 10 | 0.4% | 7 | Namaziandost, Ehsan #56,760 |
| Information & Library Sciences | 3 | 0.1% | 0 | Ramazi, Shahin #230,785 |
| Communication & Textual Studies · 5 listed authors (0.2%) |
| Languages & Linguistics | 4 | 0.1% | 3 | Derakhshan, Ali #713 |