Martineau, Adrian R Double-blind randomised placebo-controlled trial of bolus-dose vitamin D3 supplementation in adults with asthma (ViDiAs). [electronic resource] - Thorax May 2015 - 451-7 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1468-3296 Standard No.: 10.1136/thoraxjnl-2014-206449 doi Subjects--Topical Terms: AdultAsthma--complicationsCholecalciferol--administration & dosageCohort StudiesDietary SupplementsDouble-Blind MethodDrug Administration ScheduleFemaleHumansIncidenceMaleMiddle AgedRespiratory Tract Infections--epidemiologyTime FactorsVitamins--administration & dosage