Medicare expansions 35 years later.
Swartz
K
K
D002648:Child; D006801:Humans; D017057:Medically Uninsured; D006278:Medicare / Q000191:economics / Q000639:trends*; D008875:Middle Aged; D009310:National Health Insurance, United States / Q000191:economics / Q000639:trends; D014481:United States