Luo, Jian Can Vitamin D Supplementation in Addition to Asthma Controllers Improve Clinical Outcomes in Patients With Asthma?: A Meta-Analysis. [electronic resource] - Medicine Dec 2015 - e2185 p. digital Publication Type: Journal Article; Meta-Analysis; Review; Systematic Review ISSN: 1536-5964 Standard No.: 10.1097/MD.0000000000002185 doi Subjects--Topical Terms: Anti-Asthmatic Agents--therapeutic useAsthma--drug therapyDietary SupplementsHumansVitamin D--therapeutic useVitamins--therapeutic use