1. Temperature sensitivity of vaccines;World Health Organization,2006
2. Technical review of vaccine vial monitor;World Health Organization,2002
3. Assessing programmatic suitability of vaccine candidates for WHO prequalification;World Health Organization,2014
4. WHO EVM database, December 2015;World Health Organization,2015
5. WHO/UNICEF estimates of national immunization coverage 2014;World Health Organization,2014