1. WHO, UNICEF, World Bank. State of the world’s vaccines and immunization, 3rd ed. Geneva, World Health Organization, 2009: World Health Organization; 2009. Available from: .
2. World Health Organization. Adverse events following immunization (AEFI); 2016. Available from: .
3. Intussusception among infants given an oral rotavirus vaccine;Murphy;New England J Med,2001
4. CDC. Withdrawal of rotavirus vaccine recommendation; 1999. Available from: .
5. World Health Organization. Global vaccine safety blueprint; 2012. Available from: .