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APA Citation
Li, K., Yang, F., Huang, W., Zhao, Y., Wu, D., Tang, W., Wu, F., Yang, L., Zhang, T., Muessig, K., & Tucker, J. (n.d.). p023 A mixed-methods analysis of a pay-it-forward gonorrhea/chlamydia testing program among men who have sex with men in china. Sexually transmitted infections, 95, A91. http://access.bl.uk/ark:/81055/vdc_100135179157.0x000012