. 2016 Oct 8;388(10053):1659–1724. doi: 10.1016/S0140-6736(16)31679-8
© 2016 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY license
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).