The unique contribution of twin studies to the elucidation of nongenetic factors in personality development and psychopathogenesis.
D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009497:Neurotic Disorders / Q000209:etiology; D010551:Personality; D011247:Pregnancy; D012559:Schizophrenia / Q000209:etiology; D014427:Twins