Why vaccines?
Ivinson
A J
AJ
D002648:Child; D003362:Cost-Benefit Analysis; D003906:Developing Countries; D006801:Humans; D007391:International Cooperation; D014611:Vaccination / Q000191:economics / Q000639:trends*; D014612:Vaccines / Q000191:economics; D026712:Value of Life
D014612:Vaccines