%0 Journal Article %B BMJ Global Health %D 2021 %G ENG %I BMJ %N 4 %P 1-7 %R 10.1136/bmjgh-2021-005802 %T The uses of knowledge in global health %U https://gh.bmj.com/content/bmjgh/6/4/e005802.full.pdf %V 6 %9 Letter to the editor