Medical momentum is a crazy thing. You should see how long it took hand washing to catch on. http://www.npr.org/sections/health-shots/2015/01/12/375663920/the-

Medical momentum is a crazy thing. You should see how long it took hand washing to catch on. http://www.npr.org/sections/health-shots/2015/01/12/375663920/the-doctor-who-championed-hand-washing-and-saved-women-s-lives http://www.npr.org/sections/health-shots/2015/01/12/37566392...