Krobtrakulchai W, Praikanahok J, Visitsunthorn N, Vichyanond P, Manonukul , Pratumvinit B, Jirapongsananuruk O
PURPOSE: In the USA and Europe, hypovitaminosis D is associated with increased asthma severity, emergency department (ED) visit, and impaired pulmonary function in asthmatic patients. However, in tropical countries, data...