The National Academy of Sciences--National Research Council Twin Registry: ten years of operation.
D000886:Anthropometry; D003878:Dermatoglyphics; D004812:Epidemiologic Methods; D005260:Female; D006077:Government Agencies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008889:Military Personnel; D009017:Morbidity; D009938:Organizations; D011247:Pregnancy; D012042:Registries; D012107:Research Design; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic; D014481:United States