Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.
pulmonary fibrosis
Metrics
H-Index
i10 Index
Citation
112
303
75,665
Medicina Respiratória e Terapia Intensiva
Metrics
H-Index
i10 Index
Citation
77
421
46,518
Pneumologia
Medicina do Sono
Metrics
H-Index
i10 Index
Citation
72
239
28,589
PULMONARY MEDICINE
PULMONARY INFECTIONS
Metrics
H-Index
i10 Index
Citation
50
109
19,018
Sleep Medicine
Metrics
H-Index
i10 Index
Citation
50
113
8,175
Pneumonia
S. pneumoniae
Lower respiratory tract infections
COVID 19
Cardiovascular complications during and after pneumonia
Metrics
H-Index
i10 Index
Citation
46
90
9,027
* Rankings
Ranking Based
On Selection: 7
Metrics
H-Index
i10 Index
Citation
40
87
10,670
Pneumologia
Metrics
H-Index
i10 Index
Citation
39
91
5,103
* Rankings
Ranking Based
On Selection: 9
poluição do ar
doenças ocupacionais
tabagismo
Metrics
H-Index
i10 Index
Citation
37
72
4,837
* Rankings
Ranking Based
On Selection: 10
Pneumologia
Infecçoes Respiratórias e DPOC
Metrics
H-Index
i10 Index
Citation
36
80
4,150
* Rankings
Ranking Based
On Selection: 11
Asma. Pneumologia Geral
Metrics
H-Index
i10 Index
Citation
36
128
6,870
* Rankings
Ranking Based
On Selection: 12
Sleep Medicine
Pulmonology
Metrics
H-Index
i10 Index
Citation
35
65
4,464
* Rankings
Ranking Based
On Selection: 13
Medicina
Pneumologia
Metrics
H-Index
i10 Index
Citation
34
89
3,897
* Rankings
Ranking Based
On Selection: 14
respiratory medicine
adult cystic fibrosis
asthma
bronchiectasis
tuberculosis
Metrics
H-Index
i10 Index
Citation
33
84
3,276
* Rankings
Ranking Based
On Selection: 15
Pulmonary Circulation
Metrics
H-Index
i10 Index
Citation
33
59
3,654
* Rankings
Ranking Based
On Selection: 16
Medicina
Metrics
H-Index
i10 Index
Citation
32
61
3,743
asma
tuberculosis
neumología
Metrics
H-Index
i10 Index
Citation
32
90
5,110
* Rankings
Ranking Based
On Selection: 18
Pulmonary & Critical Care
Medical Education
Metrics
H-Index
i10 Index
Citation
30
85
4,013
Metrics
H-Index
i10 Index
Citation
28
40
2,199
* Rankings
Ranking Based
On Selection: 20
Pneumologia
Bronquiectasia
Fibrose Cística
Asma
Metrics
H-Index
i10 Index
Citation
27
53
2,569
* Rankings
Ranking Based
On Selection: 21
Pulmonology
Exercise
Respiratory Physiology
Metrics
H-Index
i10 Index
Citation
27
57
2,944
* Rankings
Ranking Based
On Selection: 22
Pneumologia - Alergia - Asma - Doenças Ocupacionais
Metrics
H-Index
i10 Index
Citation
27
61
3,515
Enfermedades Pulmonares
Metrics
H-Index
i10 Index
Citation
26
37
3,835
* Rankings
Ranking Based
On Selection: 24
pneumologia
medicina
fisioterapia
clinica médica
Metrics
H-Index
i10 Index
Citation
25
55
2,461
* Rankings
Ranking Based
On Selection: 25
Pneumologia
Infecções
DPOC
Metrics
H-Index
i10 Index
Citation
24
56
1,932
* Rankings
Ranking Based
On Selection: 26
Pneumologia
Fisiologia Respiratória
Função Pulmonar
Fisiologia Exercício
Metrics
H-Index
i10 Index
Citation
23
32
2,367
* Rankings
Ranking Based
On Selection: 27
pneumologia
Metrics
H-Index
i10 Index
Citation
23
41
1,480
Interventional Pulmonology
Metrics
H-Index
i10 Index
Citation
22
36
1,459
* Rankings
Ranking Based
On Selection: 29
Pneumologia
Biologia
Metrics
H-Index
i10 Index
Citation
22
38
1,214
* Rankings
Ranking Based
On Selection: 30
Chronic Obstructive Lung Diseases
Bronchiectasis
Pulmonary Hypertension
Metrics
H-Index
i10 Index
Citation
21
36
1,489
* Rankings
Ranking Based
On Selection: 31
Pulmonary hypertension
hemodynamics
exercise physiology
Metrics
H-Index
i10 Index
Citation
20
28
1,187
* Rankings
Ranking Based
On Selection: 32
Pneumologia
DPOC
Função Pulmonar
Metrics
H-Index
i10 Index
Citation
20
31
1,315
* Rankings
Ranking Based
On Selection: 33
Doem
Metrics
H-Index
i10 Index
Citation
17
21
892
* Rankings
Ranking Based
On Selection: 34
Pneumology
interstitial lung diseases
hypersensitivity pneumonitis
Metrics
H-Index
i10 Index
Citation
16
21
748
* Rankings
Ranking Based
On Selection: 35
Pneumologia e Medicina do Sono
Metrics
H-Index
i10 Index
Citation
15
20
752
* Rankings
Ranking Based
On Selection: 36
Tabagismo
Doenças Ocupacionais
Poluição
Neoplasias pulmonares
Risco cirúrgico
Metrics
H-Index
i10 Index
Citation
15
16
777
* Rankings
Ranking Based
On Selection: 37
PNEUMOLOGIA E TISIOLOGIA
Metrics
H-Index
i10 Index
Citation
15
18
747
* Rankings
Ranking Based
On Selection: 38
Pneumologia
Endoscopia Respiratória
Oncologia Torácica
Metrics
H-Index
i10 Index
Citation
14
17
925
* Rankings
Ranking Based
On Selection: 39
Interventional Pulmonology
Dysphagia
Metrics
H-Index
i10 Index
Citation
13
17
1,196
* Rankings
Ranking Based
On Selection: 40
Sleep Medicine
Exercise Science
Metrics
H-Index
i10 Index
Citation
13
14
1,263
* Rankings
Ranking Based
On Selection: 41
Pneumologia
Metrics
H-Index
i10 Index
Citation
13
18
613
Medicina Humana. Neumología. Salud Publica
Metrics
H-Index
i10 Index
Citation
12
18
512
* Rankings
Ranking Based
On Selection: 43
Pneumologia
Fisiologia Clínica do Exercício
Função Pulmonar
Reabilitação Física
Interações Cardiopulmonares
Metrics
H-Index
i10 Index
Citation
12
15
504
* Rankings
Ranking Based
On Selection: 44
Lung Transplantation
Thromboembolic Pulmonary Hypertension
Metrics
H-Index
i10 Index
Citation
12
16
536
* Rankings
Ranking Based
On Selection: 45
Pneumologia
transplante pulmonar
doação de órgãos
Metrics
H-Index
i10 Index
Citation
12
15
502
Pulmonology
Internal Medicine
Neonatal Medicine
Respiratory Care
Health science
Metrics
H-Index
i10 Index
Citation
11
11
404
* Rankings
Ranking Based
On Selection: 47
Neumología
Medicina del Sueño
Metrics
H-Index
i10 Index
Citation
11
12
652
* Rankings
Ranking Based
On Selection: 48
pneumologia
doenças do sono
Metrics
H-Index
i10 Index
Citation
11
11
478
* Rankings
Ranking Based
On Selection: 49
Neumologia-Medicina Interna
Metrics
H-Index
i10 Index
Citation
10
10
435
* Rankings
Ranking Based
On Selection: 50
Pneumologia
função pulmonar
fisiologia clínica do exercício
Metrics
H-Index
i10 Index
Citation
9
9
427
* Rankings
Ranking Based
On Selection: 51
Respiratory medicine
lung diseases
airway remodeling
telehealth
Metrics
H-Index
i10 Index
Citation
9
9
191
* Rankings
Ranking Based
On Selection: 52
Neumologia
Metrics
H-Index
i10 Index
Citation
8
6
219
* Rankings
Ranking Based
On Selection: 53
Câncer de pulmão
Metrics
H-Index
i10 Index
Citation
7
7
1,026
* Rankings
Ranking Based
On Selection: 54
Pneuomologia
Genética
Doenças Pulmonares Intersticiais
Metrics
H-Index
i10 Index
Citation
6
6
298
* Rankings
Ranking Based
On Selection: 55
NEUMOLOGIA
Metrics
H-Index
i10 Index
Citation
6
6
285
* Rankings
Ranking Based
On Selection: 56
Interventional pulmonology and critical care medicine
Metrics
H-Index
i10 Index
Citation
6
5
266
* Rankings
Ranking Based
On Selection: 57
Pulmonary and Critical Care Medicine
Metrics
H-Index
i10 Index
Citation
6
3
65
* Rankings
Ranking Based
On Selection: 58
Pneumologia
Teste de Esforço
Função Pulmonar
Metrics
H-Index
i10 Index
Citation
5
3
87
* Rankings
Ranking Based
On Selection: 59
Pulmonology
Metrics
H-Index
i10 Index
Citation
5
4
197
* Rankings
Ranking Based
On Selection: 60
Neumologia/Pulmonary medicine
Metrics
H-Index
i10 Index
Citation
5
3
85
* Rankings
Ranking Based
On Selection: 61
Medicina - Neumología
Metrics
H-Index
i10 Index
Citation
3
1
92
* Rankings
Ranking Based
On Selection: 62
Pediatrics
Pulmonology
Allergy and Immunology
Vaccines
High Altitude
Metrics
H-Index
i10 Index
Citation
3
0
14
* Rankings
Ranking Based
On Selection: 63
Pneumologia
Metrics
H-Index
i10 Index
Citation
2
2
114
* Rankings
Ranking Based
On Selection: 64
pneumologia
vias aéreas
Metrics
H-Index
i10 Index
Citation
2
1
24
* Rankings
Ranking Based
On Selection: 65
Neumologia
Broncoscopia
Cancer de Pulmon
EPOC
Ultrasonido Pulmonar
Metrics
H-Index
i10 Index
Citation
1
1
42
* Rankings
Ranking Based
On Selection: 66
pulmonary medicine
research
teaching
Metrics
H-Index
i10 Index
Citation
1
1
17
* Rankings
Ranking Based
On Selection: 67
Medicina Respiratoria
Metrics
H-Index
i10 Index
Citation
1
1
16
* Rankings
Ranking Based
On Selection: 68
Medicina respiratoria
Metrics
H-Index
i10 Index
Citation
1
0
4
* Rankings
Ranking Based
On Selection: 69
Cystic Fibrosis
Bronchiectasis
Alpha-1-antitrypsin deficiency
COPD
Metrics
H-Index
i10 Index
Citation
1
0
3
Moisés Selman
Metrics
H-Index
i10 Index
Citation Counts
112
303
75,665
Carlos Roberto Ribeiro De Carvalho Carvalho
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
77
421
46,518
Medicina Respiratória e Terapia Intensiva
Geraldo Lorenzi Filho
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
72
239
28,589
Pneumologia
Medicina do Sono
Carlos M Luna
Universidad de Buenos Aires
Buenos Aires, Argentina
Metrics
H-Index
i10 Index
Citation Counts
50
109
19,018
PULMONARY MEDICINE
PULMONARY INFECTIONS
Dalva Poyares
Universidade Federal de São Paulo UNIFESP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
50
113
8,175
Luis F Reyes
Metrics
H-Index
i10 Index
Citation Counts
46
90
9,027
Pneumonia
S. pneumoniae
Lower respiratory tract infections
COVID 19
Cardiovascular complications during and after pneumonia
Ronaldo Adib Kairalla
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
40
87
10,670
Jose Chatkin
Metrics
H-Index
i10 Index
Citation Counts
39
91
5,103
Ubiratan Santos
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
37
72
4,837
poluição do ar
doenças ocupacionais
tabagismo
Paulo José Zimermann Teixeira
Metrics
H-Index
i10 Index
Citation Counts
36
80
4,150
Pneumologia
Infecçoes Respiratórias e DPOC
José Antônio Baddini Martinez
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
36
128
6,870
Pedro Genta
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
35
65
4,464
Sleep Medicine
Pulmonology
Lisete R Teixeira
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
34
89
3,897
Paulo De Tarso Roth Dalcin
Universidade Federal do Rio Grande do Sul UFRGS
Porto Alegre, Brazil
Metrics
H-Index
i10 Index
Citation Counts
33
84
3,276
respiratory medicine
adult cystic fibrosis
asthma
bronchiectasis
tuberculosis
Carlos Jardim
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
33
59
3,654
Marcelo Fouad Rabahi
Universidade Federal de Goiás UFG
Goiania, Brazil
Metrics
H-Index
i10 Index
Citation Counts
32
61
3,743
Vargas, Mario H.
Metrics
H-Index
i10 Index
Citation Counts
32
90
5,110
asma
tuberculosis
neumología
Juliana Carvalho Ferreira
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
30
85
4,013
Pulmonary & Critical Care
Medical Education
Eduardo Vieira Ponte
Faculdade de Medicina de Jundiaí
Jundiaí, Brazil
Metrics
H-Index
i10 Index
Citation Counts
28
40
2,199
Rodrigo Abensur Athanazio
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
27
53
2,569
Pneumologia
Bronquiectasia
Fibrose Cística
Asma
Danilo Cortozi Berton
Universidade Federal do Rio Grande do Sul UFRGS
Porto Alegre, Brazil
Metrics
H-Index
i10 Index
Citation Counts
27
57
2,944
Pulmonology
Exercise
Respiratory Physiology
Elcio Vianna
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
27
61
3,515
Pneumologia - Alergia - Asma - Doenças Ocupacionais
Ruiz V
Metrics
H-Index
i10 Index
Citation Counts
26
37
3,835
Claudia Da Costa
Universidade do Estado do Rio de Janeiro UERJ
Rio de Janeiro, Brazil
Metrics
H-Index
i10 Index
Citation Counts
25
55
2,461
pneumologia
medicina
fisioterapia
clinica médica
Rosemeri Maurici Da Silva
Universidade Federal de Santa Catarina UFSC
Florianopolis, Brazil
Metrics
H-Index
i10 Index
Citation Counts
24
56
1,932
Pneumologia
Infecções
DPOC
João Marcos Salge
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
23
32
2,367
Pneumologia
Fisiologia Respiratória
Função Pulmonar
Fisiologia Exercício
Ilma Aparecida Paschoal
Universidade Estadual de Campinas UNICAMP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
23
41
1,480
Macarena Rodriguez Vial
Metrics
H-Index
i10 Index
Citation Counts
22
36
1,459
Interventional Pulmonology
Milena Marques Pagliarelli Acencio
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
22
38
1,214
Monica Corso Pereira
Universidade Estadual de Campinas UNICAMP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
21
36
1,489
Chronic Obstructive Lung Diseases
Bronchiectasis
Pulmonary Hypertension
Rudolf Kf Oliveira
Universidade Federal de São Paulo UNIFESP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,187
Pulmonary hypertension
hemodynamics
exercise physiology
Frederico La Fernandes
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
20
31
1,315
Pneumologia
DPOC
Função Pulmonar
Thais Helena A Thomaz Queluz
Metrics
H-Index
i10 Index
Citation Counts
17
21
892
Olívia Meira Dias
Hospital Israelita Albert Einstein
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
16
21
748
Pneumology
interstitial lung diseases
hypersensitivity pneumonitis
Ricardo Luiz De Menezes Duarte
Metrics
H-Index
i10 Index
Citation Counts
15
20
752
Pneumologia e Medicina do Sono
Gustavo Faibischew Prado
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
15
16
777
Tabagismo
Doenças Ocupacionais
Poluição
Neoplasias pulmonares
Risco cirúrgico
Roberta Karla Barbosa De Sales
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
15
18
747
Mauro Musa Zamboni
Instituto Nacional de Cancer
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
14
17
925
Pneumologia
Endoscopia Respiratória
Oncologia Torácica
Luis F Giraldo Cadavid
Metrics
H-Index
i10 Index
Citation Counts
13
17
1,196
Interventional Pulmonology
Dysphagia
Giselle Soares Passos
Universidade Federal de Goiás UFG
Goiania, Brazil
Metrics
H-Index
i10 Index
Citation Counts
13
14
1,263
Sleep Medicine
Exercise Science
Hugo Yoo
Metrics
H-Index
i10 Index
Citation Counts
13
18
613
Cristian Morán Mariños
Metrics
H-Index
i10 Index
Citation Counts
12
18
512
Medicina Humana. Neumología. Salud Publica
Paulo De Tarso Müller
Universidade Federal de Mato Grosso do Sul
Campo Grande, Brazil
Metrics
H-Index
i10 Index
Citation Counts
12
15
504
Pneumologia
Fisiologia Clínica do Exercício
Função Pulmonar
Reabilitação Física
Interações Cardiopulmonares
Ricardo Henrique Oliveira Braga Teixeira
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
12
16
536
Lung Transplantation
Thromboembolic Pulmonary Hypertension
José Eduardo Afonso Jr
Hospital Israelita Albert Einstein
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
12
15
502
Pneumologia
transplante pulmonar
doação de órgãos
Kasim Hassen
Metrics
H-Index
i10 Index
Citation Counts
11
11
404
Pulmonology
Internal Medicine
Neonatal Medicine
Respiratory Care
Health science
José Luis Carrillo Alduenda
Metrics
H-Index
i10 Index
Citation Counts
11
12
652
Neumología
Medicina del Sueño
Denise Duprat Neves
Universidade Federal do Estado do Rio de Janeiro UNIRIO
Rio de Janeiro, Brazil
Metrics
H-Index
i10 Index
Citation Counts
11
11
478
pneumologia
doenças do sono
Luis Alberto Concepción Urteaga
Universidad Nacional de Trujillo
Trujillo, Peru
Metrics
H-Index
i10 Index
Citation Counts
10
10
435
Neumologia-Medicina Interna
Luiza Helena Degani Costa
Hospital Israelita Albert Einstein
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
9
9
427
Pneumologia
função pulmonar
fisiologia clínica do exercício
Andrea Méndez
Universidad de las Américas Chile
Santiago, Chile
Metrics
H-Index
i10 Index
Citation Counts
9
9
191
Respiratory medicine
lung diseases
airway remodeling
telehealth
Diego Severiche Bueno
Metrics
H-Index
i10 Index
Citation Counts
8
6
219
Maurício Wesley Perroud Júnior
Universidade Estadual de Campinas UNICAMP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
7
7
1,026
Fabio Eiji Arimura
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
6
6
298
Pneuomologia
Genética
Doenças Pulmonares Intersticiais
Eduardo Esteban Chirinos-Arroyo
Metrics
H-Index
i10 Index
Citation Counts
6
6
285
Victor Perez-Gutierrez
Metrics
H-Index
i10 Index
Citation Counts
6
5
266
Interventional pulmonology and critical care medicine
González-Aguirre Je
Universidad Autónoma de Nuevo León
San Nicolás de Los Garza, Mexico
Metrics
H-Index
i10 Index
Citation Counts
6
3
65
Pulmonary and Critical Care Medicine
Thiago Lins Fagundes De Sousa
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10 Index
Citation Counts
5
3
87
Pneumologia
Teste de Esforço
Função Pulmonar
Jose Luis Che Morales
Instituto Mexicano del Seguro Social
Mexico City, Mexico
Metrics
H-Index
i10 Index
Citation Counts
5
4
197
Rafael Francisco Páramo Arroyo
Red de Universidades Anáhuac
Huixquilucan, Mexico
Metrics
H-Index
i10 Index
Citation Counts
5
3
85
Neumologia/Pulmonary medicine
Mabel Patricia Franky Rojas
Universidad de Boyacá
Tunja, Colombia
Metrics
H-Index
i10 Index
Citation Counts
3
1
92
Camila Aparicio Llorente
Metrics
H-Index
i10 Index
Citation Counts
3
0
14
Pediatrics
Pulmonology
Allergy and Immunology
Vaccines
High Altitude
Sonia Ferrari Peron
Metrics
H-Index
i10 Index
Citation Counts
2
2
114
Sergio Grava
Centro Universitário de Maringá CESUMAR
Várzea Alegre, Brazil
Metrics
H-Index
i10 Index
Citation Counts
2
1
24
Juan Francisco Leon Del Angel
Universidad de Monterrey
Monterrey, Mexico
Metrics
H-Index
i10 Index
Citation Counts
1
1
42
Neumologia
Broncoscopia
Cancer de Pulmon
EPOC
Ultrasonido Pulmonar
Suyapa María Sosa Ferrari
Universidad Nacional Autónoma de Honduras
Tegucigalpa, Honduras
Metrics
H-Index
i10 Index
Citation Counts
1
1
17
pulmonary medicine
research
teaching
Gustavo Rosales-Chávez|Gustavo Rosales
Hospital Civil de Guadalajara
Jalisco, Mexico
Metrics
H-Index
i10 Index
Citation Counts
1
1
16
Esteban J Wainstein
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
Caroline Souza Sokoloski
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
Cystic Fibrosis
Bronchiectasis
Alpha-1-antitrypsin deficiency
COPD