Serum immunoglobulin levels in twins.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D004777:Environment; D005260:Female; D005306:Fertilization; D005826:Genetics, Medical; D006801:Humans; D005779:Immunodiffusion; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D008297:Male; D008875:Middle Aged; D010063:Ovum; D011247:Pregnancy; D014427:Twins; D005719:gamma-Globulins / Q000032:analysis*
D007074:Immunoglobulin G; D007075:Immunoglobulin M; D005719:gamma-Globulins