University, Subject, Country, Region, World

World 1.452 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Jan 30, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 27
Demosthenes Bouros
pulmonary fibrosis
interstitial lung diseases
Metrics
H-Index
i10 Index
Citation Counts
83
310
41,922
* Total H IndexRankings
Ranking Based On Selection: 29
Ashutosh N Aggarwal
Epidemiology of chronic respiratory diseases
Pulmonary function testing
Health outcomes research
Interventional pulmonology
Metrics
H-Index
i10 Index
Citation Counts
79
319
23,092
* Total H IndexRankings
Ranking Based On Selection: 30
Huib Kerstjens
asthma
COPD
tuberculosis
lung transplantation
Metrics
H-Index
i10 Index
Citation Counts
79
277
27,211
* Total H IndexRankings
Ranking Based On Selection: 32
P Koul
COPD
Influenza
Vaccination
Pulmonary Hypertension
Mountain medicine
Metrics
H-Index
i10 Index
Citation Counts
78
181
115,752
* Total H IndexRankings
Ranking Based On Selection: 33
Stefano Aliberti
Pneumonia
Bronchiectasis
Non-Tuberculous Mycobacteria
Metrics
H-Index
i10 Index
Citation Counts
78
277
26,925
* Total H IndexRankings
Ranking Based On Selection: 35
Ivan O Rosas
Pulmonary Fibrosis
COPD
Lung Transplantation
Metrics
H-Index
i10 Index
Citation Counts
74
184
22,053

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* Total H IndexRankings
Ranking Based On Selection: 37
Charles Feldman
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
Metrics
H-Index
i10 Index
Citation Counts
74
272
19,403
* Total H IndexRankings
Ranking Based On Selection: 38
Edwin Chilvers
Respiratory Medicine
neutrophil
Metrics
H-Index
i10 Index
Citation Counts
74
164
20,775
* Total H IndexRankings
Ranking Based On Selection: 40
Sebastien Bonnet
Pulmonary hypertension and vascular biology
Metrics
H-Index
i10 Index
Citation Counts
73
156
36,175
* Total H IndexRankings
Ranking Based On Selection: 43
Takafumi Suda
Respirology
Immunology
Respiratory Medicine
Pulmonary Medicine
Metrics
H-Index
i10 Index
Citation Counts
71
465
22,253
* Total H IndexRankings
Ranking Based On Selection: 44
John Wharton
Pulmonary hypertension
Biomarkers
Metrics
H-Index
i10 Index
Citation Counts
71
177
17,660
* Total H IndexRankings
Ranking Based On Selection: 45
K Gourgoulianis
University of Thessaly
Respiratory Medicine
COPD
Pleura
sleep apnea
Metrics
H-Index
i10 Index
Citation Counts
71
359
17,189
* Total H IndexRankings
Ranking Based On Selection: 46
Ahmed S Bahammam
Sleep Medicine
obstructive sleep apnea
obesity hypoventilation syndrome
hypersomnolence
fasting circadian rhythm and sleep
Metrics
H-Index
i10 Index
Citation Counts
69
244
15,951
* Total H IndexRankings
Ranking Based On Selection: 47
Christopher O Callaghan
Respiratory medicine
World Medical Education www.worldmedicaleducation.org
Metrics
H-Index
i10 Index
Citation Counts
69
198
18,032
* Total H IndexRankings
Ranking Based On Selection: 49
YC Gary Lee
Pleural diseases
Malignant Pleural Effusion
Pleural Infection
Mesothelioma
Lung Cancer
Metrics
H-Index
i10 Index
Citation Counts
68
197
16,534
* Total H Index Rankings
Rankings
Ranking Based On Selection: 26
Peter Bradding
Metrics
H-Index
i10-Index
Citation Counts
84
217
30,863
* Total H Index Rankings
Rankings
Ranking Based On Selection: 27
Demosthenes Bouros
Metrics
H-Index
i10-Index
Citation Counts
83
310
41,922
* Total H Index Rankings
Rankings
Ranking Based On Selection: 28
Alan Knox
Metrics
H-Index
i10-Index
Citation Counts
80
216
23,411
* Total H Index Rankings
Rankings
Ranking Based On Selection: 29
Ashutosh N Aggarwal
Metrics
H-Index
i10-Index
Citation Counts
79
319
23,092
Epidemiology of chronic respiratory diseases
Pulmonary function testing
Health outcomes research
Interventional pulmonology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 30
Huib Kerstjens
Metrics
H-Index
i10-Index
Citation Counts
79
277
27,211
* Total H Index Rankings
Rankings
Ranking Based On Selection: 31
Atul C Mehta
Metrics
H-Index
i10-Index
Citation Counts
79
316
27,127
* Total H Index Rankings
Rankings
Ranking Based On Selection: 32
P Koul
Metrics
H-Index
i10-Index
Citation Counts
78
181
115,752
COPD
Influenza
Vaccination
Pulmonary Hypertension
Mountain medicine
* Total H Index Rankings
Rankings
Ranking Based On Selection: 33
Stefano Aliberti
Metrics
H-Index
i10-Index
Citation Counts
78
277
26,925
Pneumonia
Bronchiectasis
Non-Tuberculous Mycobacteria
* Total H Index Rankings
Rankings
Ranking Based On Selection: 34
Carlos Roberto Ribeiro De Carvalho Carvalho
Metrics
H-Index
i10-Index
Citation Counts
77
421
46,518
* Total H Index Rankings
Rankings
Ranking Based On Selection: 35
Ivan O Rosas
Metrics
H-Index
i10-Index
Citation Counts
74
184
22,053

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 36
Alyn Hugh Morice
Metrics
H-Index
i10-Index
Citation Counts
74
315
29,465
* Total H Index Rankings
Rankings
Ranking Based On Selection: 37
Charles Feldman
Metrics
H-Index
i10-Index
Citation Counts
74
272
19,403
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
* Total H Index Rankings
Rankings
Ranking Based On Selection: 38
Edwin Chilvers
Metrics
H-Index
i10-Index
Citation Counts
74
164
20,775
* Total H Index Rankings
Rankings
Ranking Based On Selection: 39
JR Hurst
Metrics
H-Index
i10-Index
Citation Counts
73
209
29,415
* Total H Index Rankings
Rankings
Ranking Based On Selection: 40
Sebastien Bonnet
Metrics
H-Index
i10-Index
Citation Counts
73
156
36,175
* Total H Index Rankings
Rankings
Ranking Based On Selection: 41
Geraldo Lorenzi Filho
Metrics
H-Index
i10-Index
Citation Counts
72
239
28,589
* Total H Index Rankings
Rankings
Ranking Based On Selection: 42
Jacky Smith
Metrics
H-Index
i10-Index
Citation Counts
71
190
16,042
* Total H Index Rankings
Rankings
Ranking Based On Selection: 43
Takafumi Suda
Metrics
H-Index
i10-Index
Citation Counts
71
465
22,253
Respirology
Immunology
Respiratory Medicine
Pulmonary Medicine
* Total H Index Rankings
Rankings
Ranking Based On Selection: 44
John Wharton
Metrics
H-Index
i10-Index
Citation Counts
71
177
17,660
* Total H Index Rankings
Rankings
Ranking Based On Selection: 45
K Gourgoulianis
Metrics
H-Index
i10-Index
Citation Counts
71
359
17,189
University of Thessaly
Respiratory Medicine
COPD
Pleura
sleep apnea
* Total H Index Rankings
Rankings
Ranking Based On Selection: 46
Ahmed S Bahammam
Metrics
H-Index
i10-Index
Citation Counts
69
244
15,951
Sleep Medicine
obstructive sleep apnea
obesity hypoventilation syndrome
hypersomnolence
fasting circadian rhythm and sleep
* Total H Index Rankings
Rankings
Ranking Based On Selection: 47
Christopher O Callaghan
Metrics
H-Index
i10-Index
Citation Counts
69
198
18,032
Respiratory medicine
World Medical Education www.worldmedicaleducation.org
* Total H Index Rankings
Rankings
Ranking Based On Selection: 48
Wilfried De Backer
Metrics
H-Index
i10-Index
Citation Counts
69
196
16,426
* Total H Index Rankings
Rankings
Ranking Based On Selection: 49
YC Gary Lee
Metrics
H-Index
i10-Index
Citation Counts
68
197
16,534
Pleural diseases
Malignant Pleural Effusion
Pleural Infection
Mesothelioma
Lung Cancer
* Total H Index Rankings
Rankings
Ranking Based On Selection: 50
Caramori Gaetano
Metrics
H-Index
i10-Index
Citation Counts
68
163
19,033