1. Living up to the legacy
2. WHO, UNICEF. 1996. State of the World's Vaccines and Immunization. WHO, Geneva.
3. Vaccine visions and their global impact
4. Children's Vaccine Initiative, Global Programme for Vaccines and Immunization. 1997. Report of the Meeting of the Scientific Advisory Group of Experts (SAGE) 11-13 June 1997. WHO, Geneva.