Plasma immunoglobulin concentrations in twins.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D007109:Immunity; D008297:Male; D008875:Middle Aged; D008967:Molecular Biology; D011247:Pregnancy; D012737:Sex Factors; D014427:Twins; D005719:gamma-Globulins / Q000032:analysis*
D005719:gamma-Globulins