Thema
Data Collection
108
Journal Article
103
Research Methodology
97
English Abstract
80
Population
79
Demographic Factors
77
Americas
75
Developing Countries
72
Latin America
69
Population Dynamics
68
Data Sources
55
Developed Countries
55
North America
47
Population Statistics
37
Measurement
35
South America
33
Studies
33
Population Characteristics
32
Evaluation
30
Mortality
29
Data Analysis
27
Economic Factors
26
Migration
26
Europe
24
Mexico
24
Southern Europe
23
Age Factors
21
Historical Survey
21
Reliability
21
Mediterranean Countries
20
Estimation Technics
19
Sampling Studies
19
Spain
19
Surveys
19
Comparative Studies
18
Comparative Study
18
International Migration
18
Caribbean
16
Central America
16
Data collection
16
Family Planning
16
Vital Statistics
16
DATA COLLECTION
15
Error Sources
15
Geographic Factors
15
Socioeconomic Factors
15
Census
14
Fertility
14
Medicine
14
Social Sciences
14
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