immunoglobulin m , g , a , and e serum levels were quantitated in 20 patients with active histoplasmosis ( group i ) , 24 healthy subjects who were skin test positive to histoplasmin ( group ii ) , and 47 healthy persons who were skin test negative to histoplasmin ( group iii ) .
C0019655
histoplasmosis
C0019654
histoplasmin