Top countries for Urology & Nephrology

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Which countries have the most top-cited scientists in Urology & Nephrology?

1,996 researchers whose main subfield is Urology & Nephrology 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 (838, 42.0%), followed by Italy (133) and Germany (120). 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	838	299	42.0%	Levey, Andrew S. #294	Mayo Clinic
2	Italy	133	37	6.7%	Ronco, Claudio #1,287	Istituto di Ricerche Farmacologiche Mario Negri
3	Germany	120	37	6.0%	Anders, Hans Joachim #2,275	Universitätsklinikum Hamburg-Eppendorf
4	United Kingdom	113	33	5.7%	Abrams, Paul H. #8,011	University College London
5	Canada	101	41	5.1%	Tonelli, Marcello A. #2,348	The University of British Columbia
6	Japan	87	22	4.4%	Kuro-O, Makoto #4,179	Graduate School of Medicine
7	China	68	18	3.4%	Liu, Youhua #3,792	Peking University First Hospital
8	France	66	15	3.3%	Rouprêt, Morgan #20,614	Université Paris Cité
9	Netherlands	65	24	3.3%	Heerspink, Hiddo J.Lambers #3,761	Radboud University Medical Center
10	Australia	62	20	3.1%	Jha, Vivekanand K. #2,001	George Institute for Global Health
11	Spain	36	9	1.8%	Ortiz, Alberto Arduan #1,656	Hospital Universitario 12 de Octubre
12	Belgium	34	15	1.7%	Vanholder, Raymond Camille #7,231	Universitair Ziekenhuis Gent
13	South Korea	31	4	1.6%	Kang, Dukhee #35,936	Seoul National University College of Medicine
14	Sweden	30	8	1.5%	Carrero, Juan Jesús #1,746	Karolinska Institutet
15	Austria	21	2	1.1%	Shariat, Shahrokh F. #8,697	Medizinische Universität Wien
16	Switzerland	20	4	1.0%	Wagner, Carsten A. #18,297	Universität Zürich
17	India	18	2	0.9%	Mulay, Shrikant R. #47,647	All India Institute of Medical Sciences, New Delhi
18	Taiwan	17	2	0.9%	Kuo, Hann Chorng #40,123	Tzu Chi University
19	Hong Kong	12	8	0.6%	Lan, Hui Yao #4,801	Chinese University of Hong Kong
20	Greece	12	2	0.6%	Sarafidis, Pantelis A. #17,689	Aristotle University of Thessaloniki
21	Türkiye	10	4	0.5%	Kanbay, Mehmet #26,890	Koç University
22	Brazil	9	3	0.5%	Pecoits-Filho, Roberto Flávio Silva #60,782	Pontifícia Universidade Católica do Paraná
23	Denmark	9	0	0.5%	Fenton, Robert A. #125,427	Aarhus Universitet
24	Mexico	8	2	0.4%	Sánchez-Lozada, Laura Gabriela #63,991	Instituto Nacional de la Nutrición Salvador Zubiran
25	Ireland	8	1	0.4%	Cornford, Philip A. #69,688	UCD School of Medicine
26	Singapore	6	2	0.3%	Wang, Angela Yee Moon #31,684	Singapore General Hospital
27	Iran	5	1	0.3%	Safarinejad, Mohammad Reza #64,563	School of Medicine
28	Czechia	4	2	0.2%	Babjuk, Marek M. #39,756	Všeobecná Fakultní Nemocnice v Praze
29	Israel	4	3	0.2%	Goligorsky, Michael S. #53,723	Technion - Israel Institute of Technology
30	South Africa	4	0	0.2%	Okpechi, Ikechi Gareth #129,594	Groote Schuur Hospital
31	Thailand	4	0	0.2%	Susantitaphong, Paweena #140,797	Faculty of Medicine, Chulalongkorn University
32	Norway	4	0	0.2%	Hallan, Stein Ivar #149,557	Universitetssykehuset i Trondheim
33	Portugal	4	0	0.2%	Gameiro, Joana #273,555	Centro Hospitalar Lisboa Norte
34	New Zealand	3	0	0.2%	Gilling, Peter J. #110,645	Tauranga Hospital
35	Egypt	3	0	0.2%	Barsoum, Rashad S. #125,309	Cairo Kidney Center
36	Poland	3	0	0.2%	Malyszko, Jolanta S. #155,141	Medical University of Warsaw
37	United Arab Emirates	2	2	0.1%	Ramasamy, Ranjith #43,148	Jumeirah American Clinic
38	Romania	2	1	0.1%	Covic, Adrian Constantin #63,156	Universitatea de Medicină și Farmacie “Grigore T. Popa” Iasi
39	Colombia	2	1	0.1%	García-Perdomo, Herney Andrés #86,308	Universidad del Valle, Cali
40	Finland	2	0	0.1%	Tammela, Teuvo L.J. #154,536	University Hospital of Tampere
41	Qatar	2	0	0.1%	Aboumarzouk, O. Mousa #258,325	Qatar University
42	Russia	1	1	0.1%	de la Rosette, Jean Jmch M.C.H. #69,712	Bashkir State Medical University
43	North Macedonia	1	1	0.1%	Spasovski, Goce B. #99,611	Ss. Cyril and Methodius University in Skopje
44	Argentina	1	0	0.1%	Trimarchi, He´Rnan M. #107,688	Hospital Britanico de Buenos Aires
45	Georgia	1	0	0.1%	Nasri, Hamid #159,601	The University of Georgia, Tbilisi
46	Jordan	1	0	0.1%	Abufaraj, Mohammad M. #161,610	The University of Jordan
47	Kazakhstan	1	0	0.1%	Gaipov, Abduzhappar E. #173,669	Nazarbayev University
48	Lebanon	1	0	0.1%	Ziyadeh, Fuad N. #185,519	American University of Beirut
49	Nigeria	1	0	0.1%	Ulasi, Ifeoma Isabella #198,795	University of Nigeria
50	Hungary	1	0	0.1%	Hamar, Péter #235,050	Semmelweis Egyetem
51	Ukraine	1	0	0.1%	Stepanova, N. M. #245,619	National Academy of Medical Sciences of Ukraine
52	Croatia	1	0	0.1%	Sabolić, Ivan #250,083	Institut za Medicinska Istrazivanja i Medicinu Rada
53	Slovenia	1	0	0.1%	Hojs, Radovan #284,145	Univerzitetni Klinični Center Maribor
54	Cyprus	1	0	0.1%	Voskarides, Konstantinos #307,041	University of Nicosia Medical School
55	Serbia	1	0	0.1%	Djordjevic, Miroslav L. #369,285	Belgrade University School of Medicine