8Glasier A, Gulmezoglu AM, Schmid GP, et al. Sexual and reproductive health: a matter of life and death [J]. Lancet, 2006,368 (9547) : 1595-1607.
9Latkin CA, Donnell D, Metzger D, et al. The efficacy of a network intervention to reduce HIV risk behaviors among drug users and risk partners in Chiang Mai, Thailand and Philadelphia, USA [J]. Soc Sci ivied, 2009,68(4):740-748.
10Amirkhanian YA, Kelly JA, Kabakchieva E, et al. Evaluation of a social network HIV prevention intervention program for young men who have sex with men in Russia and Bulgaria [J ]. AIDS Educ Prey, 2003,15(3) :205-220.