Top countries for Clinical Medicine

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Which countries have the most top-cited scientists in Clinical Medicine?

76,155 researchers whose main field is Clinical Medicine are in the 2026 list of top-cited scientists, the annual ranking often called the Stanford–Elsevier top 2% scientists list. The United States has the most (28,460, 37.4%), followed by the United Kingdom (6,303) and China (3,924). A country with 100 or more opens its institutions in the field; the others open their scientists in the table of all authors.

#	Country	Listed authors	Top 100k	Share of field	Highest-ranked author	Top institution
1	United States	28,460	11,185	37.4%	Ioannidis, John P.A. #24	Harvard Medical School
2	United Kingdom	6,303	2,517	8.3%	Altman, Douglas G. #10	University College London
3	China	3,924	837	5.2%	Zhang, Zhongheng #819	Fudan University
4	Germany	3,770	1,335	5.0%	Neurath, Markus Friedrich #304	Charité – Universitätsmedizin Berlin
5	Italy	3,709	1,078	4.9%	Mantovani, Alberto R. #328	Università degli Studi di Milano
6	Canada	3,140	1,200	4.1%	Moher, David #18	University of Toronto
7	Australia	2,943	1,050	3.9%	Page, Matthew James #231	Monash University
8	France	2,120	720	2.8%	Bray, Freddie Ian #52	Université Paris Cité
9	Japan	2,074	536	2.7%	Kudo, Masotoshi #238	Graduate School of Medicine
10	Netherlands	1,955	702	2.6%	Cuijpers, Pim C. #165	Erasmus MC
11	Switzerland	1,345	430	1.8%	Hanahan, Douglas A. #78	Universität Zürich
12	South Korea	1,258	224	1.7%	Kang, Hyun #2,478	Seoul National University College of Medicine
13	India	1,252	263	1.6%	Jonas, Jost Bruno #298	All India Institute of Medical Sciences, New Delhi
14	Spain	1,237	396	1.6%	Llovet, Josep M. #528	Universitat de Barcelona
15	Sweden	1,028	361	1.3%	Naghavi, Mohsen #133	Karolinska Institutet
16	Iran	978	183	1.3%	Sahebkar, Amirhossein #157	Tehran University of Medical Sciences
17	Denmark	820	321	1.1%	Nordestgaard, Börge Grønne #239	Københavns Universitet
18	Belgium	809	296	1.1%	Vincent, Jean Louis #177	KU Leuven– University Hospital Leuven
19	Brazil	536	108	0.7%	Monteiro, Carlos Augusto #1,271	Universidade de São Paulo
20	Austria	510	139	0.7%	Smolen, Josef Sebastian #826	Medizinische Universität Wien
21	Saudi Arabia	464	114	0.6%	Almatroudi, Ahmad Abdulaziz A. #5,939	King Saud University
22	Taiwan	428	68	0.6%	Gordon, Siamon #1,278	Chang Gung Memorial Hospital
23	Israel	420	136	0.6%	Elinav, Eran #4,987	Tel Aviv University
24	Hong Kong	411	156	0.5%	Ng, S. C. #1,926	Chinese University of Hong Kong
25	Greece	398	125	0.5%	Chrousos, George P. #966	National and Kapodistrian University of Athens
26	Norway	398	130	0.5%	Aune, Dagfinn #2,040	Universitetet i Oslo
27	Finland	393	151	0.5%	Kivimaki, Mika Shipley #1,314	Helsingin Yliopisto
28	Poland	371	90	0.5%	Banach, Maciej P. #1,663	Wroclaw Medical University
29	Singapore	343	117	0.5%	Wong, Tienyin #474	National University of Singapore
30	Ireland	323	109	0.4%	O’Neill, Luke A. #461	Trinity College Dublin
31	New Zealand	321	102	0.4%	Feigin, Valery L. #237	University of Auckland
32	Türkiye	252	60	0.3%	Erel, Özcan #4,864	Hacettepe Üniversitesi
33	South Africa	247	74	0.3%	Hamblin, Michael R. #84	University of Cape Town
34	Portugal	233	64	0.3%	Cruz-Martins, Natália #3,221	Universidade do Porto
35	Egypt	188	33	0.2%	Batiha, Gaber E. #7,311	National Research Centre
36	Malaysia	174	40	0.2%	Yusoff, Muhamad Saiful Bahri #6,544	Universiti Malaya
37	Ethiopia	152	15	0.2%	Kassa, Getachew Mullu #31,726	University of Gondar
38	Thailand	151	20	0.2%	White, Nicholas J. #1,427	Chulalongkorn University
39	United Arab Emirates	148	48	0.2%	Sengupta, Pallav #2,365	University of Sharjah
40	Pakistan	140	22	0.2%	Bhutta, Zulfiqar A. #251	The Aga Khan University
41	Russia	97	24	0.1%	Kagan, Valerian E. #6,394	Sechenov First Moscow State Medical University
42	Mexico	97	24	0.1%	Rosales, Carlos #13,335	Universidad Nacional Autónoma de México
43	Romania	92	17	0.1%	Bungau, Simona Gabriela #14,395	Universitatea de Medicina si Farmacie Carol Davila din Bucuresti
44	Czechia	86	28	0.1%	Boileau, Pascal #4,351	Charles University
45	Qatar	84	26	0.1%	Thornalley., Paul J. #5,135	Qatar University
46	Nigeria	82	17	0.1%	Olusanya, Bolajoko O. #3,421	University of Ibadan
47	Chile	82	17	0.1%	Deacon, Robert Michael John #10,351	Universidad de Chile
48	Hungary	78	28	0.1%	Győrffy, Balázs #684	Semmelweis Egyetem
49	Bangladesh	76	16	0.1%	Islam, Md Torequl #5,497	International Centre for Diarrhoeal Disease Research Bangladesh
50	Jordan	68	15	0.1%	Sallam, Malik #1,405	Jordan University of Science and Technology
51	Argentina	61	13	0.1%	Correale, Jorge Daniel #13,126	Consejo Nacional de Investigaciones Científicas y Técnicas
52	Colombia	61	14	0.1%	López-Jaramillo, P. #18,775	Universidad de Antioquia
53	Indonesia	58	7	0.1%	Harapan, Harapan H. #30,782	Universitas Padjadjaran
54	Croatia	55	11	0.1%	Reiner, Željko #7,093	University of Zagreb School of Medicine
55	Iraq	47	7	0.1%	Ahmed, Sirwan Khalid #25,492	University of Babylon
56	Serbia	44	8	0.1%	Jakovljevic, Mihajlo B. #4,660	University of Belgrade
57	Slovenia	44	14	0.1%	Rubin, Rita M.A. #14,478	Univerza v Ljubljani
58	Macao	41	15	0.1%	Montag, Christian #11,758	University of Macau
59	Ghana	37	9	0.0%	Ezzati, Majid Hassanpour #1,901	University of Health and Allied Sciences, Ghana
60	Liberia	37	17	0.0%	Guralnik, Jack Michael D. #5,580	National Institutes of Health
61	Lebanon	34	12	0.0%	Taher, Ali T. #32,914	American University of Beirut
62	Oman	32	6	0.0%	Bhatia, Saurabh C. #7,803	Sultan Qaboos University
63	Cyprus	31	14	0.0%	Stylianopoulos, Triantafyllos #11,637	European University Cyprus
64	Puerto Rico	30	6	0.0%	Javadov, Sabzali #25,302	Moffitt Cancer Center
65	Kenya	27	6	0.0%	Temmerman, Marleen I.L. #24,522	African Population and Health Research Center
66	Vietnam	25	6	0.0%	Tran, Bach Xuan #5,728	VinUniversity
67	Sri Lanka	25	4	0.0%	Ranasinghe, Priyanga Diloshini #39,619	University of Kelaniya
68	Peru	23	5	0.0%	García, Héctor Hugo #38,102	Universidad Peruana Cayetano Heredia
69	Iceland	19	8	0.0%	BjÖrnssÖn, Einar Stefán #3,527	Haskoli Islands
70	Lithuania	19	4	0.0%	Walach, Harald #45,112	Lietuvos Sveikatos Mokslų Universitetas
71	Luxembourg	17	5	0.0%	Fagherazzi, Guy #20,391	Luxembourg Institute of Health
72	Slovakia	17	8	0.0%	Záhorec, Roman #26,439	Comenius University Medical School
73	Nepal	17	3	0.0%	Dhimal, Megnath L. #34,757	Nepal Health Research Council
74	Estonia	17	3	0.0%	Sak, K. #36,065	Tartu Ülikool
75	Palestine	16	4	0.0%	Sweileh, Waleed M. #7,269	An-Najah National University
76	Ukraine	16	2	0.0%	Spytska, Liana V. #18,060	I. Horbachevsky Ternopil National Medical University
77	Philippines	16	1	0.0%	Quirk, Gregory J. #30,119	National Institutes of Health, University of the Philippines Manila
78	Tanzania	16	1	0.0%	Sunguya, Bruno Fokas #91,716	Ifakara Health Institute
79	Kuwait	15	1	0.0%	Raghupathy, Raj Gopal #86,502	Kuwait University
80	Kazakhstan	15	0	0.0%	Aljofan, Mohamad #122,148	Nazarbayev University School of Medicine
81	Ecuador	14	7	0.0%	Sharifi-Rad, Javad #794	Universidad Espíritu Santo
82	Rwanda	14	4	0.0%	Pîbarot, Philippe #5,353	University of Global Health Equity
83	Uganda	13	2	0.0%	Alum, Esther Ugo #45,254	Makerere University School of Public Health
84	Cameroon	11	4	0.0%	Bigna, Jean Joel R. #69,082	Université de Yaoundé I
85	Tunisia	11	0	0.0%	Ben Saad, Helmi #101,962	Institut Supérieur du Sport et de l'Education Physique de Sfax
86	Bulgaria	11	0	0.0%	Vinciguerra, Manlio #105,364	Medical University of Sofia
87	Bahrain	10	5	0.0%	Jahrami, Haitham Ali #8,014	Arabian Gulf University
88	Latvia	10	2	0.0%	Lagunas-Rangel, Francisco Alejandro #28,819	Latvian Institute of Organic Synthesis
89	Morocco	10	0	0.0%	Bakrim, Saad #125,811	Mohammed VI Polytechnic University
90	Jamaica	8	0	0.0%	Serjeant, Graham Roger #131,442	The University of the West Indies Mona Campus
91	Malawi	6	0	0.0%	Muula, Adamson Sinjani #121,060	Kamuzu University of Health Sciences
92	Bosnia & Herzegovina	6	0	0.0%	Zerem, Enver #163,198	Univerzitet u Sarajevu
93	Brunei	6	0	0.0%	Ong, Sok King #163,950	Universiti Brunei Darussalam
94	Burkina Faso	6	0	0.0%	Bosu, William Kofi #302,341	Institut de Recherche en Sciences de la Santé
95	Malta	5	1	0.0%	Cuschieri, Sarah #2,406	L-Università ta' Malta
96	Sudan	5	1	0.0%	Hassan Fahal, Ahmed Hassan #98,823	Mycetoma Research Centre
97	Zambia	5	0	0.0%	Drakeley, Chris J. #126,028	University of Zambia
98	Senegal	5	0	0.0%	Trape, Jean François #158,566	Institut Pasteur de Dakar
99	Panama	5	0	0.0%	Núñez-Samudio, Virginia #188,694	Instituto de Ciencias Médicas
100	Botswana	4	2	0.0%	Hofmeyr, George Justus #20,875	University of Botswana
101	Mozambique	4	3	0.0%	Mocumbi, Ana Olga Machatine De Almeida Hausse #23,800	Universidade Eduardo Mondlane
102	Syria	4	2	0.0%	Aljerf, Loai M. #36,898	Damascus University
103	Cuba	4	1	0.0%	Reardon, Sara #36,934	Ciénaga De Zapata National Park
104	Zimbabwe	4	2	0.0%	Chibanda, Dixon M. #47,832	University of Zimbabwe
105	Yemen	4	1	0.0%	Al-Moraissi, E. A. #55,927	Thamar University
106	Costa Rica	4	1	0.0%	Herrero, Rolando #67,005	Instituto Costarricense de Investigacion y Ensenanza en Nutricion y Salud Costa Rica
107	Cambodia	4	1	0.0%	de Ziegler, Dominique #82,639	University of Puthisastra
108	Mali	4	0	0.0%	Djimde, Abdoulaye A. #344,657	Université des Sciences, des Techniques et des Technologies de Bamako
109	Monaco	3	2	0.0%	Landrigan, PJ J. #2,020	Centre Scientifique de Monaco
110	Azerbaijan	3	1	0.0%	Khalilov, Rovshan I. #23,379	Baku State University
111	Libya	3	1	0.0%	Elhadi, Muhammed K. #51,823	University of Tripoli
112	Côte d’Ivoire	3	0	0.0%	Cissé, Guéladio #101,225	Centre Suisse de Recherches Scientifiques Abidjan
113	Venezuela	3	0	0.0%	Montes de Oca, María #150,159	Universidad Central de Venezuela
114	Georgia	3	0	0.0%	Nasri, Hamid #159,601	The University of Georgia, Tbilisi
115	Congo - Kinshasa	3	0	0.0%	Katoto, Patrick De Marie Chimusa #174,966	Université de Kinshasa
116	Sierra Leone	3	0	0.0%	Sankoh, Osman A. #176,560	University of Management and Technology (UNIMTECH)
117	Trinidad & Tobago	3	0	0.0%	Umakanthan, Srikanth #208,768	The University of the West Indies, St. Augustine Campus
118	Benin	3	0	0.0%	Accrombessi, Manfred Mario Kokou #392,309	Centre de Recherche Entomologique de Cotonou
119	Uruguay	2	1	0.0%	Monti, Jaime M. #47,497	Universidad de la Republica Facultad de Medicina
120	Andorra	2	1	0.0%	Tornero-Aguilera, José Francisco #57,523	Fit Generation Research Institute
121	Papua New Guinea	2	1	0.0%	Duke, Trevor D. #87,232	University of Papua New Guinea
122	North Macedonia	2	1	0.0%	Spasovski, Goce B. #99,611	Ss. Cyril and Methodius University in Skopje
123	Kyrgyzstan	2	0	0.0%	Mirrakhimov, Erkin M. #141,912	National Center of Cardiology and Internal Disease
124	Barbados	2	0	0.0%	Butler, Thomas #254,584	Ross University School of Medicine
125	Liechtenstein	1	1	0.0%	Heintze, Siegward Dietmar #31,119	R&D
126	San Marino	1	1	0.0%	Bianchi, Vittorio Emanuele #38,585	Università degli Studi della Repubblica di San Marino
127	Myanmar (Burma)	1	1	0.0%	Oo, Win Min #71,529	University of Medicine Mandalay
128	Faroe Islands	1	1	0.0%	Mohr, Magni M. #72,866	University of the Faroe Islands
129	Gambia	1	1	0.0%	Barrow, Amadou #93,945	University of The Gambia
130	Grenada	1	0	0.0%	MacPherson, Calum N.L. #108,613	St. George’s University
131	Guinea-Bissau	1	0	0.0%	Lunet, Nuno #111,469	Hospital Nacional Simão Mendes
132	Greenland	1	0	0.0%	Jørgensen, Marit E. Eika #129,723	Steno Diabetes Center Greenland
133	Armenia	1	0	0.0%	Heboyan, Artak G. #149,223	Yerevan State Medical University after Mkhitar Heratsi
134	Guatemala	1	0	0.0%	Rohloff, Peter J. #182,886	Wuqu’ Kawoq Maya Health Alliance
135	Seychelles	1	0	0.0%	Nunley, Ryan M. #197,987	Washington University School of Medicine
136	Paraguay	1	0	0.0%	Cubillá, Antônio Leopoldo #263,677	Universidad Nacional de Asuncion
137	Montenegro	1	0	0.0%	Klisic, Aleksandra N. #290,409	Primary Health Care Center
138	Somalia	1	0	0.0%	Mohamed, Jama #298,856	University of Hargeisa
139	Algeria	1	0	0.0%	Zaidi, Zoubida #395,465	Université Ferhat Abbas Sétif 1
140	Curaçao	1	0	0.0%	Berend, Kenrick #427,472	Curaçao Medical Center
141	Congo - Brazzaville	1	0	0.0%	Karamagi, Humphrey Cyprian #429,670	World Health Organization Regional Office for Africa Congo
142	Afghanistan	1	0	0.0%	Stanikzai, Muhammad Haroon #453,750	Kandahar University
143	Fiji	1	0	0.0%	Nand, Devina #614,006	Ministry of Health and Medical Services
144	Guinea	1	0	0.0%	Delamou, Alexandre #627,068	Ministry of Health and Public Hygiene
145	Madagascar	1	0	0.0%	Bonds, Matthew H. #646,849	Ranomafana