title: The times they are a-changin'--quickly.
authors: Marvin L
authors: ML
authors: Birnbaum
mesh_terms: D054597:Disaster Medicine / Q000193:education / Q000592:standards; D049673:History, 20th Century; D006801:Humans; D011361:Professional Competence; D012952:Societies; D014944:World Health Organization