Thema
Age Factors
7
Demographic Factors
7
Journal Article
7
Population
7
Population Characteristics
7
Youth
6
Adolescents
5
Diseases
5
Research Methodology
5
Americas
4
Behavior
4
Developed Countries
4
Mental Disorders
4
North America
4
Northern America
4
Population Dynamics
4
Research Report
4
Studies
4
Adolescent Pregnancy
3
Adolescents, Female
3
Fertility
3
Reproductive Behavior
3
Research Support, U.S. Gov't, P.H.S.
3
United States
3
Biology
2
Correlation Studies
2
Crime
2
Pregnancy, Unwanted
2
Psychological Factors
2
Research Support, Non-U.S. Gov't
2
Risk Factors
2
Sampling Studies
2
Social Problems
2
Statistical Studies
2
Surveys
2
Abortion Seekers
1
Abortion, Induced
1
Canada
1
Child
1
Child Abuse
1
Comparative Study
1
Data Collection
1
Delivery Of Health Care
1
Depression
1
Depression--women
1
Family Planning
1
Fertility Control, Postconception
1
Fertility Measurements
1
First Birth
1
Gender Issues
1
mehr ...