The effects of COVID-19 on New York State's Drug User Health Hubs and syringe service programs: a qualitative study. - Ude, Mercy; Behrends, Czarina N.; Kelly, Shea; Schackman, Bruce R.; Clear, Allan; Goldberg, Rebecca; Gelberg, Kitty; Kapadia, Shashi N. (Harm Reduction Journal, 2023)