Medical Discovery News, April 12, 2008 Saturday's edition of Medical Discovery News, by UTMB Professors Norbert Herzog and David Niesel, focused on fluoridation. Despite the success of fluoride at reducing tooth decay, only 60 percent of Americans drink fluoridated water. Medical Discovery News airs at 10 a.m. on KUHF-FM in Houston. The program is aired by 48 radio stations.