• Poliomyelitis in the Americas,1988
• Hepatitis B Vaccine
• VHB Standards and Stability
• Sixth International Symposium on Pertussis
• First Andean Vaccination Day
• EPI in the Bahamas: Role of Private Practitioners
• Neonatal Tetanus in Venezuela, 1986-1989
• Reported Cases of EPI Diseases
• Vaccination Coverage in the Americas