Comment on

• Homelessness, unstable housing, and risk of HIV and hepatitis C virus acquisition among people who inject drugs: a systematic review and meta-analysis.

  Arum C, Fraser H, Artenie AA, Bivegete S, Trickey A, Alary M, Astemborski J, Iversen J, Lim AG, MacGregor L, Morris M, Ong JJ, Platt L, Sack-Davis R, van Santen DK, Solomon SS, Sypsa V, Valencia J, Van Den Boom W, Walker JG, Ward Z, Stone J, Vickerman P; Homelessness, HIV, and HCV Review Collaborative Group. Arum C, et al. Lancet Public Health. 2021 May;6(5):e309-e323. doi: 10.1016/S2468-2667(21)00013-X. Epub 2021 Mar 26. Lancet Public Health. 2021. PMID: 33780656 Free PMC article.