Thema
United Kingdom
Journal Article
3.178
Europe
2.052
Developed Countries
1.996
Northern Europe
1.985
Population
988
Family Planning
963
Research Methodology
939
Demographic Factors
933
England
865
Research Support, Non-U.S. Gov't
708
Population Dynamics
702
Contraception
579
Diseases
578
Studies
539
Biology
516
Population Characteristics
503
Economic Factors
444
Health
439
Behavior
426
Physiology
413
Age Factors
338
United States
325
Research Report
310
Delivery Of Health Care
305
Fertility Control, Postconception
292
Reproduction
275
Socioeconomic Factors
273
Mortality
270
Contraceptive Methods
269
Scotland
268
Comparative Study
259
Wales
252
Western Europe
250
Fertility
248
Abortion, Induced
231
Psychological Factors
226
Organization And Administration
217
Comparative Studies
215
France
211
Migration
210
Medicine
204
Geographic Factors
201
Review
199
Programs
198
Developing Countries
191
Contraceptives, Oral
189
North America
189
Americas
185
Measurement
175
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