Association between recreational drug use and sexual practices among people who inject drugs in Southwest China: a cross-sectional study

por Su, Shu, Zhang, Lei, Cheng, Feng, Li, Shunxiang, Li, Shifu, Jing, Jun, Fairley, Christopher Kincaid, Chen, Liang, Zhao, Jinxian, Mao, Limin
Publicado 2018