title: Heredity and environmental factors in the development of psychogenic diseases.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004200:Diseases in Twins; D004777:Environment; D005260:Female; D006801:Humans; D008297:Male; D009497:Neurotic Disorders / Q000235:genetics*; D010290:Parents; D011247:Pregnancy; D011602:Psychophysiologic Disorders / Q000235:genetics*; D012737:Sex Factors; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic