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| ageing populations; demographic ageing; population ageing; ageing of the population | |||
| aging of the population; aging population | |||
| ageing population An increase in the proportion of older persons in a social group or population (Augmentation de la proportion de personnes âgées dans un groupe social ou une population); ageing population | |||
| vieillissement de la population: 2 phrases in 2 subjects |
| Research and development | 1 |
| Social science | 1 |