Shen, H, Tang, S, Mahapatra, T, Tucker, JD, Huang, S, Yang, B, Zhao, J, Detels, R and Tang, W (2016). Condomless Vaginal Intercourse and Its Associates among Men Who Have Sex with Men in China. [Data Collection]. Figshare. https://doi.org/10.1371/journal.pone.0154132.s001