Agriculture & Biology
bone fractures
100%
prospective studies
85%
vitamin D
77%
Denmark
70%
childhood
22%
bones
16%
midwives
14%
dual-energy X-ray absorptiometry
14%
pregnant women
11%
blood
10%
liquid chromatography
9%
tandem mass spectrometry
8%
blood serum
7%
pregnancy
6%
methodology
5%
sampling
3%
Medicine & Life Sciences
Bone Fractures
71%
Denmark
69%
Vitamin D
61%
Prospective Studies
41%
Mothers
41%
Bone and Bones
11%
25-hydroxyvitamin D
11%
Midwifery
10%
Photon Absorptiometry
10%
Liquid Chromatography
9%
Forearm
9%
Proportional Hazards Models
8%
Pregnant Women
7%
Pregnancy
5%
Serum
4%
Child
4%
Population
3%
Earth & Environmental Sciences
vitamin
76%
bone
53%
city
36%
woman
15%
blood
13%
hazard
11%
pregnancy
9%
liquid chromatography
8%
serum
7%
sensitivity analysis
7%
timescale
5%
energy
3%
method
3%
Engineering & Materials Science
Vitamins
98%
Bone
63%
Blood
15%
Hazards
14%
Liquid chromatography
12%
X rays
7%
Sensitivity analysis
7%
Mathematics
Bone
81%
Hazard
18%
Blood
18%
Cox Regression Model
11%
Chromatography
11%
Percentile
9%
Children
8%
Sensitivity Analysis
8%
Subdivision
8%
Adjustment
8%
Liquid
7%
Time Scales
7%
Background
7%
Energy
5%