The idea of using tears to gauge blood sugar isn't new, but a new sensor has improved the tests.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/-3M1LQlb0dg" height="1" width="1"/>
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The idea of using tears to gauge blood sugar isn't new, but a new sensor has improved the tests.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/-3M1LQlb0dg" height="1" width="1"/>