Bartholomew TS, Plesons M, Serota DP, Alonso E, Metsch LR, Feaster DJ, Ucha J, Suarez E, Forrest DW, Chueng TA, Ciraldo K, Brooks J, Smith JD, Barocas JA, Tookes HE. Project CHARIOT: study protocol for a hybrid type 1 effectiveness-implementation study of comprehensive tele-harm reduction for engagement of people who inject drugs in HIV prevention services. Addict Sci Clin Pract. 2024 03 25; 19(1):21.