Psychosomatic mechanism under social changes in Japan.
D000293:Adolescent; D000367:Age Factors; D000397:Air Pollution; D001249:Asthma / Q000209:etiology; D001722:Birth Order; D002648:Child; D002668:Child Rearing; D003109:Colonic Diseases, Functional / Q000209:etiology; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D009034:Mother-Child Relations; D011602:Psychophysiologic Disorders / Q000209:etiology*; D012574:Schools; D012737:Sex Factors; D012922:Social Change; D014507:Urbanization