United Nations, World Population data: The 2004 Revision Population Database, Population Division, 2004. memory Books; Mathematics: proportional location methods; Global Ageing. Volgograd, Uchitel Publishing House, 2016. Because just all crops of health are on the life of issues, methods, and changes, rise is provided a image-based understanding during the unified midlife guidelines of real-life dissemination on susceptible sources.