Abstract
요약
1. INTRODUCTION
2. MATERIAL AND METHODS
2.1 Study population
2.2 Serum 25(OH)D
2.3 Questionnaire
2.4 Statistical analyses
3. Results
3.1 General characteristics of subjects
3.2 Health behavior characteristics of subjects
3.3 Distribution of serum Vitamin D levels in subjects
3.4 Association between vitamin D levels and study variables
3.5 Relationship between vitamin D deficiency related factors by gender
4. DISCUSSION AND CONCLUSION
REFERENCES