Top countries for Cardiovascular System & Hematology

70 countries · Cardiovascular System & Hematology

Search countries

Which countries have the most top-cited scientists in Cardiovascular System & Hematology?

5,189 researchers whose main subfield is Cardiovascular System & Hematology 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 (2,096, 40.4%), followed by Italy (371) and the United Kingdom (361). A country with 100 or more opens its institutions in the subfield; the others open their scientists in the table of all authors.

#	Country	Listed authors	Top 100k	Share of subfield	Highest-ranked author	Top institution
1	United States	2,096	1,040	40.4%	Libby, Peter A. #28	Harvard Medical School
2	Italy	371	146	7.1%	Mancia, Giuseppe #1,423	Sapienza Università di Roma
3	United Kingdom	361	184	7.0%	Ridker, Paul M. #50	University College London
4	Germany	307	141	5.9%	Anker, Stefan D. #1,011	Deutsches Zentrum für Herz-Kreislauf-Forschung e. V.
5	Canada	247	129	4.8%	Austin, Peter C. #35	The University of British Columbia
6	Netherlands	192	91	3.7%	Levi, Marcel M. #3,767	University Medical Center Utrecht
7	Japan	170	57	3.3%	Kario, Kazuomi #1,511	Graduate School of Medicine
8	China	159	37	3.1%	Ge, Junbo #2,593	Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College
9	France	150	61	2.9%	Zannad, Faïez Mohamed #2,344	Hôpital Européen Georges-Pompidou
10	Australia	119	55	2.3%	Nicholls, Stephen J. #1,706	Monash University
11	Sweden	97	47	1.9%	Lind, Lars L. #2,632	Uppsala Universitet
12	Spain	87	39	1.7%	Ibáñez, Borja #4,290	Universitat de Barcelona
13	Switzerland	86	41	1.7%	Lüscher, Thomas Felix #3,582	University Hospital Bern
14	Denmark	77	36	1.5%	Nordestgaard, Börge Grønne #239	Rigshospitalet
15	Greece	69	29	1.3%	Filippatos, Gerasimos S. #5,216	National and Kapodistrian University of Athens
16	Belgium	62	35	1.2%	Carmeliet, Peter F.M. #246	Departement Cardiovasculaire Wetenschappen
17	South Korea	56	20	1.1%	Kim, Hyeon Chang #13,190	Yonsei University College of Medicine
18	Poland	54	16	1.0%	Banach, Maciej P. #1,663	Slaski Uniwersytet Medyczny w Katowicach
19	Austria	45	19	0.9%	Kronenberg, Florian #3,068	Medizinische Universität Wien
20	Finland	37	19	0.7%	Taskinen, Marja Riitta #8,614	Turun Yliopistollinen Keskussairaala
21	Brazil	35	13	0.7%	Bensenor, Isabela M. #13,790	Universidade de São Paulo
22	Norway	33	17	0.6%	Kjeldsen, Sverre Erik #9,507	Oslo Universitetssykehus
23	Israel	26	12	0.5%	Aronson, Doron #29,777	Tel Aviv University
24	Taiwan	19	3	0.4%	Burnouf, Thierry #35,443	National Taiwan University Hospital
25	Russia	18	7	0.3%	Orekhov, Alexander Nikolaevich #8,593	National Medical Research Center for Therapy and Preventive Medicine
26	Ireland	16	8	0.3%	Serruys, Patrick W. #5,730	University of Galway
27	Singapore	14	8	0.3%	Lam, Carolyn Su Ping #1,588	National University of Singapore
28	India	14	7	0.3%	Kathiresan, Sekar #8,187	All India Institute of Medical Sciences, New Delhi
29	Hong Kong	14	5	0.3%	Tse, Gary #20,490	The University of Hong Kong Li Ka Shing Faculty of Medicine
30	South Africa	13	9	0.3%	Sliwa, Karen S. #14,420	Faculty of Health Sciences, University of Cape Town
31	Czechia	13	6	0.3%	Linhart, Aleš #26,369	Všeobecná Fakultní Nemocnice v Praze
32	Türkiye	13	5	0.3%	Hayıroğlu, Mert İlker #27,355	Siyami Ersek Thoracic and Cardiovascular Surgery Center
33	New Zealand	10	2	0.2%	White, Harvey D. #5,666	Auckland City Hospital
34	Portugal	9	6	0.2%	Ferreira, João Pedro #16,785	Faculdade de Medicina da Universidade de Lisboa
35	Serbia	9	3	0.2%	Picano, Eugenio #18,555	Klinicki Centar Srbije
36	Iran	7	4	0.1%	Sarrafzadegan, Nizal S. #20,852	Isfahan University of Medical Sciences
37	Romania	7	3	0.1%	Chioncel, O. Dragomir #28,470	Universitatea de Medicina si Farmacie Carol Davila din Bucuresti
38	Hungary	6	3	0.1%	Merkely, Béla Peter #21,762	Semmelweis Egyetem
39	Croatia	5	3	0.1%	Reiner, Željko #7,093	Croatian Hypertension League
40	Egypt	4	1	0.1%	Ibrahim, Moshen Mohsen #18,593	Faculty of Medicine
41	United Arab Emirates	4	1	0.1%	Ellahham, Samer H. #19,148	Cleveland Clinic Abu Dhabi
42	Saudi Arabia	4	1	0.1%	Mousa, Shaker A. #22,307	Faculty of Medicine, King Abdulaziz University
43	Cyprus	4	1	0.1%	Nicolaïdes, Andrew N. #29,631	University of Nicosia Medical School
44	Argentina	4	0	0.1%	Martínez, Felipe A. #115,591	University of Cordoba
45	Pakistan	3	2	0.1%	Virani, Salim Shahbuddin #798	The Aga Khan University
46	Liberia	3	2	0.1%	Virmani, Renu #11,409	Inc
47	Thailand	3	2	0.1%	Tanaka, Hirofumi #14,728	Chulalongkorn University
48	Colombia	3	1	0.1%	López-Jaramillo, P. #18,775	Universidad de Santander
49	Slovakia	3	2	0.1%	Záhorec, Roman #26,439	University Hospital in Bratislava
50	Chile	3	1	0.1%	Fuentes, Eduardo Q. #97,091	Universidad de Talca
51	Mexico	3	0	0.1%	Amsterdam, Ezra Abraham #144,644	University of California
52	Mozambique	2	2	0.0%	Mocumbi, Ana Olga Machatine De Almeida Hausse #23,800	Universidade Eduardo Mondlane
53	Slovenia	2	1	0.0%	Lainščak, Mitja #43,189	General Hospital Murska Sobota
54	Qatar	2	1	0.0%	El-Menyar, Ayman Ahmed #80,817	Weill Cornell Medicine-Qatar
55	Indonesia	2	0	0.0%	Sutanto, Henry #120,451	Universitas Airlangga
56	Luxembourg	2	0	0.0%	Devaux, Yvan #145,380	Luxembourg Institute of Health
57	Nigeria	2	0	0.0%	Karaye, Kamilu Musa #260,121	Aminu Kano Teaching Hospital
58	Rwanda	1	1	0.0%	Pîbarot, Philippe #5,353	Rwanda Rheumatic Heart Disease Research Network
59	San Marino	1	1	0.0%	Bianchi, Vittorio Emanuele #38,585	Università degli Studi della Repubblica di San Marino
60	Monaco	1	1	0.0%	Rossignol, Patrick #47,975	Centre Hospitalier Princesse-Grace Monaco
61	Ukraine	1	1	0.0%	Parkhomenko, Alexander N. #86,054	National Scientific Center M.D. Strazhesko Institute of Cardiology
62	Lithuania	1	0	0.0%	Čelutkiene, Jelena #105,794	Vilniaus Universitetas
63	Latvia	1	0	0.0%	Gershlick, Anthony H. #130,516	Paula Stradina Clinical University Hospital
64	Kyrgyzstan	1	0	0.0%	Mirrakhimov, Erkin M. #141,912	National Center of Cardiology and Internal Disease
65	Vietnam	1	0	0.0%	Trevisan, Maurizio #151,161	VinUniversity
66	Estonia	1	0	0.0%	Viigimaa, Margus #167,466	North Estonia Medical Centre
67	Zambia	1	0	0.0%	Masenga, Sepiso K. #167,541	Mulungushi University
68	Iraq	1	0	0.0%	Karwi, Qutuba G. #189,761	University of Diyala
69	Malaysia	1	0	0.0%	Chia, Y. C. #200,582	Sunway University
70	Iceland	1	0	0.0%	Aspelund, Thor #223,572	Haskoli Islands