title: Serum immunoglobulin levels in Iraqi twins.
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis*; D007493:Iraq; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic
chemical_list: D007136:Immunoglobulins