Medicine & Life Sciences
Pregnancy
100%
Mothers
59%
Contraceptive Agents
52%
Contraception
41%
Sheep
41%
Fetus
35%
Ovarian Neoplasms
31%
Parturition
30%
Confidence Intervals
28%
Obstetrics
28%
Advisory Committees
27%
Gestational Age
27%
Postpartum Period
26%
Pre-Eclampsia
25%
Cost-Benefit Analysis
25%
Odds Ratio
25%
Gestational Diabetes
24%
Premature Birth
23%
Ovarian Epithelial Carcinoma
23%
Costs and Cost Analysis
21%
Amniotic Fluid
21%
Placenta
20%
Primates
20%
First Pregnancy Trimester
19%
Systematic Reviews
18%
Oral Contraceptives
18%
Pregnancy Outcome
18%
Levonorgestrel
18%
Randomized Controlled Trials
18%
Induced Labor
17%
Obesity
17%
Cohort Studies
17%
Morbidity
17%
Hemorrhage
16%
Oocytes
16%
Pregnant Women
16%
Safety
15%
Population
15%
Therapeutics
15%
Body Mass Index
15%
Hormonal Contraception
15%
Medicaid
14%
Intrauterine Devices
14%
Macaca mulatta
14%
Maternal Obesity
14%
Quality-Adjusted Life Years
14%
Health
13%
Stillbirth
13%
Mexico
13%
Watchful Waiting
12%
Hormones
12%
Newborn Infant
12%
Counseling
12%
Prenatal Care
12%
Alaska Natives
12%
Hypoxia
11%
Amnion
11%
Menorrhagia
11%
Logistic Models
11%
Retrospective Studies
11%
Neoplasms
11%
Pain
11%
Placebos
10%
Postpartum Hemorrhage
10%
Misoprostol
10%
Guidelines
10%
Vaginal Birth after Cesarean
10%
Fetal Death
10%
Hemodynamics
10%
Progestins
10%
Urinary Incontinence
9%
Emergency Medical Services
9%
Pelvic Organ Prolapse
9%
Delivery of Health Care
9%
Fertilization in Vitro
9%
Second Pregnancy Trimester
9%
Premature Obstetric Labor
9%
Pelvic Floor
9%
Child
9%
Estrogens
9%
Vascular Endothelial Growth Factor A
9%
Genes
9%
Trophoblasts
9%
Physicians
8%
Vulvodynia
8%
Perinatal Death
8%
Dilatation
8%
Fetal Development
8%
Gestational Weight Gain
8%
Fetal Blood
8%
Incidence
8%
Weights and Measures
8%
Family Planning Services
8%
Wounds and Injuries
8%
Extraembryonic Membranes
8%
Fertility
8%
segesterone acetate and ethinyl estradiol vaginal system
8%
estradiol valerate-dienogest
8%
Contraceptives, Oral, Combined
8%
Gynecology
8%