Demographic change is faster than you think.
Pol
L G
LG
University of Nebraska at Omaha, USA.
Thomas
R K
RK
D002391:Catchment Area, Health / Q000706:statistics & numerical data*; D003710:Demography; D006301:Health Services Needs and Demand / Q000639:trends*; D006801:Humans; D008389:Marketing of Health Services; D014481:United States