immunoglobulin allotypes g1m ( a ) , g1m ( z ) and g3m ( g ) were more frequent among responders who made immunoglobulin ( ig ) g antibody ( p less than 0.02 ) , and hla-b12 was more frequent among responders who made igm antibody ( p less than 0.05 ) .
C0021006
immunoglobulin allotypes
C0003241
antibody