. 2021 Oct 2;398(10307):1239–1255. doi: 10.1016/S0140-6736(21)01609-3
© 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license.
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).