TIME You could also study the history of medical treatments , where you'd quickly discover many widely accepted and practiced ideas of their time (like blood letting) which were later realized not to be as effective as once believed. Choice in medical ... and more »
Marion Star The water disinfection process will change from the use of free chlorine to the addition of ammonia to the chlorine (chloramines, also known as combined chlorine ). Some residents were concerned about the potential hazards of the chloramines. Others ...
