共 18 条
[2]
[Anonymous], 2005, Guidelines for preventive activities in general practice
[3]
[Anonymous], REV SEXUAL HLTH CLIN
[7]
*EXP ADV GROUP CHL, 2001, SUMM CONCL CMOS EXP
[10]
Kretzschmar M, 2001, AM J EPIDEMIOL, V153, P90, DOI 10.1093/aje/153.1.90