1. Attitudes towards participating in research involving digital pill systems to measure oral HIV pre-exposure chemoprophylaxis: a cross-sectional study among men who have sex with men with substance use in the USA. Issue 1 (30th January 2023) Authors: Chai, Peter; De, Dikha; Albrechta, Hannah; Goodman, Georgia R; Takabatake, Koki; Ben-Arieh, Amy; Lee, Jasper S; Glynn, Tiffany R; Mayer, Kenneth; O'Cleirigh, Conall; Fisher, Celia Journal: BMJ open Issue: Volume 13:Issue 1(2023) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗