Increasing local economic resources for sustainable primary eye care services in developing countries: the concept of a 'sight tax' revisited.
Smith
A F
AF
Smith
J G
JG
D001766:Blindness / Q000191:economics / Q000517:prevention & control*; D003695:Delivery of Health Care / Q000191:economics*; D003906:Developing Countries; D006295:Health Resources / Q000191:economics*; D006801:Humans; D011320:Primary Health Care / Q000191:economics*