[Population problems appeared by the age group 1.  Elderly and employment].
Kaneko
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D000367:Age Factors; D001208:Asia; D003710:Demography; D019049:Developed Countries; D004467:Economics; D005202:Asia, Eastern; D007564:Japan; D011153:Population; D011154:Population Characteristics; D012923:Social Class; D012959:Socioeconomic Factors
Age Factors; Asia; Demographic Factors; Developed Countries; Eastern Asia; Economic Factors; Japan; Population; Population Characteristics; Socioeconomic Factors; Socioeconomic Status