00558nam a2200145   450000100060000010000410000610100080004720001220005546301150017760600460029270000220033870100180036070100210037885200130039912779  a20010326u           y0pory50      ba  aeng  aStructural change within the older populationeeconomic implicationsfWilliam J. Serow, David F. Sly, Michael Micklim  tPerspectives social gerontology / Robert B. Enright (ed. lit.).- Massachusets: Allyn and Bacon, 1994.- p.33-41  aGERIATRIA  TERCEIRA IDADE  ENVELHECIMENTO  aSEROWbWilliam J.  aSLYbDavid F.  aMICKLINbMichael  jSOC.1598