Antibiotic colistin now banned as feed additive for animals in China - Newton Fund
https://www.newtonfund.ac.uk/news/success-stories/antibiotic-colistin-now-banned-as-feed-additive-for-animals-in-china/
Study finds short-term impact of China's ban on colistin for animals | CIDRAP
https://www.cidrap.umn.edu/news-perspective/2020/06/study-finds-short-term-impact-chinas-ban-colistin-animals