title: Mental hygiene in diminishing population areas.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology* / Q000517:prevention & control; D011157:Population Dynamics; D012424:Rural Population; D012559:Schizophrenia / Q000453:epidemiology; D012917:Social Adjustment; D013405:Suicide / Q000453:epidemiology; D014507:Urbanization