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Continue to ChatGrinnell College research finds copper helps reduce bacteria in hospitals https://www.radioiowa.com/2016/10/03/grinnell-college-research-finds-copper-helps-reduce-bacteria-in-hospitals/
Grinnell College research finds copper helps reduce bacteria in hospitals https://www.radioiowa.com/2016/10/03/grinnell-college-research-finds-copper-helps-reduce-bacteria-in-hospitals/