Spatial distribution of HIV, HCV, and co-infections among drug users in the southwestern border areas of China (2004–2014): a cohort study of a national methadone maintenance treatment program

• Mingli LiGuangxi Center for Disease Prevention and Control
• Rong‐Jian LiGuangxi Center for Disease Prevention and Control
• Zhiyong ShenGuangxi Center for Disease Prevention and Control
• Chunying LiGuangxi Center for Disease Prevention and Control
• Nengxiu LiangGuangxi Center for Disease Prevention and Control
• Zhenren PengGuangxi Center for Disease Prevention and Control
• Wenbo HuangGuangxi Center for Disease Prevention and Control
• Chongwei HeGuangxi Center for Disease Prevention and Control
• Feng ZhongGuangxi Center for Disease Prevention and Control
• Xianyan TangGuangxi Medical University
• Guanghua LanGuangxi Center for Disease Prevention and Control