Framing the Call for Help: «describing blood donations as a way to “prevent a death» rather than «save a life» boosted the donation rate" [full paper] User telnet_reddit_80, in the Reddit Science subreddit, 18 Apr 2013
Saying 'prevent death' is more effective than 'save life' in blood donation campaigns: the wording matters User electricskies, in the Reddit Science subreddit, 07 Mar 2013