1. Reproductive health strategy to accelerate progress towards the attainment of international development goals and targets;World Health Organization.,2004
2. Guidance on medical eligibility criteria for contraceptive use: identification of research gaps;Folger;Contraception,2010
3. Pelvic inflammatory disease;Brunham;N Engl J Med,2015
4. Pathogenesis of pelvic inflammatory disease;Westrom;Genitourin Med,1993
5. Global strategy for the prevention and control of sexually transmitted infections: 2006–2015: breaking the chain of transmission;World Health Organization,2007