^pCenter;
for;
A1DS/STD;
Control;
and;
Prevention,;
ChineseCenter;
for;
Disease;
Control;
and;
Prevention,;
155;
Changbai;
Road,Changping;
District,;
Beijing;
102206,;
China;
^pInstitute;
of;
Drug;
Dependence,;
38;
Xueyuan;
Road,;
HaidianDistrict,;
Beijing;
100083,;
China;
^pUniversity;
Health;
Sciences;
Center,;
School;
of;
Public;
Healthand;
Tropical;
Medicine,;
New;
Orleans,;
LA,;
USA;
艾滋病毒感染; 中国医药; 异性; 风险; 系统; MEDLINE数据库; 国家知识基础设施; 传输方向;