By Sarah Eilers Fluoride, a pedestrian topic? You may not think of it as an agitating one, or a source of community division and debate.

By Sarah Eilers Fluoride, a pedestrian topic? You may not think of it as an agitating one, or a source of community division and debate.
By Michael Rhode, with Michael Sappol Essay originally published in Hidden Treasure: The National Library of Medicine, 2011. Watch the films now on NLM’s Medicine