1. Case definitions for infectious conditions under public health surveillance;Centers for Disease Control and Prevention;MMWR Morb Mortal Wkly Rep,1997
2. The theory of measles elimination: implications for the design of elimination strategies;Gay;J Infect Dis,2004
3. Medical importance of measles;Langmuir;Am J Dis Child,1962
4. Epidemiologic basis for eradication of measles in 1967;Sencer;Public Health Rep,1967
5. How is eradication to be defined and what are the biological criteria;Ottesen