Thema
Journal Article
73
Contraceptive Agents, Female
41
English Abstract
26
Estrogens
21
Family Planning
21
Contraception
16
Developed Countries
13
Europe
13
Northern Europe
13
ESTROGENS
12
Scandinavia
12
Sweden
12
Estradiol Congeners
10
Population
10
Demographic Factors
9
Age Factors
8
Contraceptive Agents
8
Population Characteristics
8
Research Methodology
8
Sterilization, Sexual
8
Contraceptives, Oral
7
Biology
6
Contraceptive Methods--side effects
6
Contraceptives, Oral, Combined
6
Female Sterilization
6
PREGNANCY
6
Physiology
6
STERILITY, FEMALE
6
4G7DS2Q64Y
5
Adolescents
5
Adolescents, Female
5
Behavior
5
Diseases
5
Progesterone
5
Review
5
Urogenital System
5
Youth
5
423D2T571U
4
4TI98Z838E
4
Case Reports
4
Contraceptive Usage
4
Education
4
Estradiol
4
Ethinyl Estradiol
4
Evaluation
4
GENITALIA, FEMALE
4
Genitalia
4
Genitalia, Female
4
Levonorgestrel
4
Oral Contraceptives--side effects
4
mehr ...