A factorial experiment grounded in the multiphase optimization strategy to promote viral suppression among people who inject drugs on the Texas-Mexico border: a study protocol.

Sauceda JA, Lechuga J, Ramos ME, Puentes J, Ludwig-Barron N, Salazar J, Christopoulos KA, Johnson MO, Gomez D, Covarrubias R, Hernandez J, Montelongo D, Ortiz A, Rojas J, Ramos L, Avila I, Gwadz MV, Neilands TB