Citation: Luhur WE, Chin CL, Li JM, Marsh G, Coello D, Fox A, Guarino H, Nash D, Patel VV, Behrends CN. HOME protocol for a national online survey of people who inject drugs. Harm Reduct J. 2025 Jul 18;22(Suppl 1):125. doi: 10.1186/s12954-025-01260-6. PMID: 40682080; PMCID: PMC12275260.