1. An assessment of the value of Haemophilus influenzae type b conjugate vaccine in Asia;M Miller;Pediatr Infect Dis J,1998
2. Less-Used Vaccines against Major Diseases Are Cost-Effective, Researchers Conclude;Global Alliance for Vaccines and Immunization (GAVI),2000
3. Are Pharmaceuticals Cost-Effective? A Review of the Evidence;Peter J Neumann;Health Affairs,2000