. Author manuscript; available in PMC: 2024 Dec 9.
Published in final edited form as: Lancet Glob Health. 2019 May 1;7(5):e596–e603. doi: 10.1016/S2214-109X(19)30074-9
This is an Open Access article under the CC BY-NC-ND 4.0 license (https://creativecommons.org/licenses/by-nc-nd/4.0/).