1 “...According to the United Nations World Food Program, more than 870 million of the world's people...”

2 “...According to the United Nations World Food Program, more than 870 million of the world's people...”

3 “... diagnostic tests to answer such questions would be high on local practitioners' wish lists. And both national...”

4 “... diagnostic tests to answer such questions would be high on local practitioners' wish lists. And both national...”