The influence of heredity and environment on human immunoglobulin levels.
D000293:Adolescent; D004777:Environment; D005260:Female; D006801:Humans; D005779:Immunodiffusion; D008297:Male; D008967:Molecular Biology; D011247:Pregnancy; D014427:Twins; D005719:gamma-Globulins / Q000032:analysis*
D005719:gamma-Globulins