Abstract:For more information on this publication, visit www.rand.org/t/rr1566z1Cover images: Unimog Krankenkraftwagen shared by Bundeswehr-Fotos via Flickr; CC BY 2.0.Published by the RAND Corporation, Santa Monica, Calif., and Cambridge, UK R ® is a registered trademark.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.