Age group differences of twins with leukemia.
D000293:Adolescent; D000367:Age Factors; D000650:Amnion / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D003878:Dermatoglyphics; D004200:Diseases in Twins; D005260:Female; D005330:Fetofetal Transfusion; D005333:Fetus / Q000528:radiation effects; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007223:Infant; D007938:Leukemia; D009362:Neoplasm Metastasis; D009381:Neoplasms, Radiation-Induced / Q000209:etiology; D011247:Pregnancy; D011830:Radiation Effects; D011859:Radiography