| ABSTRACT | 第6-12页 |
| 摘要 | 第13-21页 |
| 1. INTRODUCTION | 第21-24页 |
| 2. MATERIALS AND METHODS | 第24-28页 |
| 2.1 Research Object | 第24-26页 |
| 2.1.1 Respiratory diseases group | 第24-26页 |
| 2.1.2 Healthy control group | 第26页 |
| 2.2 Collection of specimens | 第26页 |
| 2.3 Vitamin A and E detection methods | 第26页 |
| 2.4 Value judgment standard methods for Vitamin A | 第26-27页 |
| 2.5 Value judgment standard methods for Vitamin E | 第27页 |
| 2.6 Follow-up of children recurrent respiratory tract infections (RRT) | 第27页 |
| 2.7 Ethics statement | 第27页 |
| 2.8 Statistical Methods | 第27-28页 |
| 3. RESULTS | 第28-40页 |
| 3.1 Demographics of control group and respiratory disease group | 第28页 |
| 3.2 The serum concentrations of vitamins A and ￡ of control group and respiratory disease group | 第28-31页 |
| 3.3 Deficiency of vitamins A and ￡ of control group and respiratory disease group | 第31-32页 |
| 3.4 Demographics of subgroup | 第32-33页 |
| 3.5 Serum concentrations of vitamins A and E of subgroups | 第33-35页 |
| 3.6 Deficiency of vitamins A and E of Subgroup | 第35-37页 |
| 3.7 The concentration of vitamin A/E in infection and non-infectionGroup | 第37-39页 |
| 3.8 Compared the recurrence of respiratory tract infection in RRTSubgroup before and after treatment | 第39-40页 |
| 4. DISCUSSION | 第40-47页 |
| 4.1 Serum vitamin A/E levels in healthy people | 第40-42页 |
| 4.2 Relationship between deficiencies in vitamin A and respiratory diseasesamong children | 第42-45页 |
| 4.3 Relationship between deficiencies in vitamin E and respiratorydiseases among children | 第45-47页 |
| 5. CONCLUSION | 第47-48页 |
| REFERENCES | 第48-52页 |
| 综述 | 第52-92页 |
| REFERENCES | 第80-92页 |
| English Abbreviations | 第92-93页 |
| ACKNOWLEDGEMENT | 第93-95页 |
