Associations between perceived and actual risk of HIV infection and HIV prevention services uptake among men who have sex with men in Shandong province, China: a cross-sectional study

• Yuxi LinShandong University
• Chuanxi LiQilu Hospital of Shandong University
• Meizhen LiaoShandong Center for Disease Control and Prevention
• Kedi JiaoShandong University
• Jing MaShandong University
• Yu YanShandong University
• Yijun LiShandong University
• Taoyu WuShandong University
• Chunxiao ChengShandong University
• Yanwen CaoShandong University
• Wenwen JiaShandong University
• Zhonghui ZhaoShandong University
• Lina WangShandong University
• Dongdong HuaShandong University
• Ruixiao LiShandong University
• Ningning GuoShandong University
• Jing MengShandong University
• Wei MaShandong University