APA

Ruan Y., Qin G., Liu S., Qian H., Zhang L., Zhou F., He Y., Chen K., Yin L., Chen X., Hao Q., Xing H., Song Y., Wang Y., Hong K., Chen J. & Shao Y. (20050914). HIV incidence and factors contributed to retention in a 12-month follow-up study of injection drug users in Sichuan Province, China. : Journal of acquired immune deficiency syndromes (1999).

Chicago

Ruan Yuhua, Qin Guangming, Liu Shizhu, Qian Hanzhu, Zhang Li, Zhou Feng, He Yixin, Chen Kanglin, Yin Lu, Chen Xianhuang, Hao Qinlin, Xing Hui, Song Yanhui, Wang Yunxia, Hong Kunxue, Chen Jianping and Shao Yiming. 20050914. HIV incidence and factors contributed to retention in a 12-month follow-up study of injection drug users in Sichuan Province, China. : Journal of acquired immune deficiency syndromes (1999).

Harvard

Ruan Y., Qin G., Liu S., Qian H., Zhang L., Zhou F., He Y., Chen K., Yin L., Chen X., Hao Q., Xing H., Song Y., Wang Y., Hong K., Chen J. and Shao Y. (20050914). HIV incidence and factors contributed to retention in a 12-month follow-up study of injection drug users in Sichuan Province, China. : Journal of acquired immune deficiency syndromes (1999).

MLA

Ruan Yuhua, Qin Guangming, Liu Shizhu, Qian Hanzhu, Zhang Li, Zhou Feng, He Yixin, Chen Kanglin, Yin Lu, Chen Xianhuang, Hao Qinlin, Xing Hui, Song Yanhui, Wang Yunxia, Hong Kunxue, Chen Jianping and Shao Yiming. HIV incidence and factors contributed to retention in a 12-month follow-up study of injection drug users in Sichuan Province, China. : Journal of acquired immune deficiency syndromes (1999). 20050914.