Keyphrases
Disease Severity
100%
Ossification of the Posterior Longitudinal Ligament
100%
Early Onset
100%
Heterotopic Ossification
100%
Ossification of the Posterior Longitudinal Ligament of the Spine
100%
Vitamin A Intake
100%
Thoracic Ossification of the Posterior Longitudinal Ligament (T-OPLL)
25%
Serum Vitamin
25%
Age-matched
16%
Age of Onset
16%
Dietary Habits
16%
Vitamin B6
16%
Self-administered Diet History Questionnaire
16%
Japan
8%
High Prevalence
8%
Lifestyle-related Disease
8%
Regression Analysis
8%
Vitamin A
8%
Thoracic Spine
8%
Nutrient Intake
8%
Morbid Obesity
8%
Low Serum
8%
Distinctive Features
8%
Matched Case-control Study
8%
Age 50
8%
Nutritional Factors
8%
Vitamin A Deficiency
8%
Immunology and Microbiology
Ossification
100%
Posterior Longitudinal Ligament
100%
Vertebral Column
100%
Vitamin Blood Level
18%
Prevalence
6%
Thoracic Spine
6%
Agricultural and Biological Sciences
Retinol
100%
Diet History
40%
Prevalence
20%
Nutrient Intake
20%
Thoracic Spine
20%
Cross-Sectional Study
20%
Vitamin A Deficiency
20%
Case-Control Study
20%
Biochemistry, Genetics and Molecular Biology
Ossification
100%
Vitamin A
100%
Vitamin Blood Level
18%
Prevalence
6%
Case-Control Study
6%
Cross Sectional Study
6%
Vitamin A Deficiency
6%
Neuroscience
Vitamin A
100%
Vertebral Column
100%