00336nam a2200109Ia 450000500170000008000170001724501130003426000300014730000100017758300190018765000200020620260716043624.0  a14.06.01 O68  aLife expectancy as an integrating concept for social and demographic data : a summary of six country studies  bThe CentreaParisFRc1985  a86 p.  c10/28/05kJOYD  aLIFE EXPECTANCY