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