a serological comparison was made of two groups of 120 matched asthmatic and healthy subjects , between the ages of 20 and 49 years and matched for age and sex , in terms of serum total levels of igg , igm , iga , igd and ige and of specific antibody levels in each immunoglobulin class to five common uk allergens .
C0020843
igd
C0021017
immunoglobulin class