Nisar, Muhammad K What do we know about juvenile idiopathic arthritis and vitamin D? A systematic literature review and meta-analysis of current evidence. [electronic resource] - Clinical rheumatology Jun 2013 - 729-34 p. digital Publication Type: Journal Article; Meta-Analysis; Review; Systematic Review ISSN: 1434-9949 Standard No.: 10.1007/s10067-012-2159-1 doi Subjects--Topical Terms: AdolescentArthritis, Juvenile--epidemiologyChildChild, PreschoolDietary SupplementsHumansInfantPrevalenceRadioimmunoassayVitamin D--metabolismVitamin D Deficiency--epidemiology