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This looks like a decent non-paywalled summary:

I thought the same with the NIH article, but the date on that one is May and the nature paper is October-- unless I am confused.

Is from may. The Wiki article on this anti-biotic has sources from then.

This link is a better and not-paywalled version from then:

Cesar & Nunez (October) is basically just a summary of Liu et al (May).