%0 Journal Article %T Doing New Research? Don't Forget the Old %A Mike Clarke %J PLOS Medicine %D 2004 %I Public Library of Science (PLoS) %R 10.1371/journal.pmed.0010035 %U http://www.plosmedicine.org/article/info%3Adoi%2F10.1371%2Fjournal.pmed.0010035