Nature CommunicationsCost-effectiveness of a smart pillbox intervention for adherence to oral HIV pre-exposure prophylaxisZhen-Hao WuZhen-Xing ChuYi-Ling MengYong-Jun JiangHong ShangQing-Hai Hu2026-01-28Full textDOI https://doi.org/10.1038/s41467-026-68970-8