Thema
Journal Article
1.783
Research Support, Non-U.S. Gov't
742
Adolescents
698
Research Support, N.I.H., Extramural
537
Adolescent
401
Adolescence
211
Research Support, U.S. Gov't, P.H.S.
186
Youth
179
Review
150
Demographic Factors
139
Population
139
Population Characteristics
137
Age Factors
135
Randomized Controlled Trial
117
Adolescent health
115
Developed Countries
114
Americas
111
Mental health
110
North America
108
Contraception
107
Northern America
104
United States
104
Behavior
89
Depression
86
Research Methodology
78
Research Report
76
HIV
70
Studies
68
COVID-19
67
Family Planning
66
Research Support, U.S. Gov't, Non-P.H.S.
65
Substance use
62
Young adults
62
Adolescents, Female
61
Comparative Study
56
Fertility
55
Young adult
55
Systematic Review
54
Population Dynamics
52
Reproductive Behavior
49
Adolescent Pregnancy
46
Obesity
45
Contraceptive Methods
43
Sex Behavior
43
Health
42
Parents
42
Education
41
Sexual health
41
Longitudinal
40
Physical activity
40
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