1. Two out of three wild poliovirus strains eradicated worldwide
2. A história da poliomielite;Nascimento D,2010
3. Eradication of infectious diseases: a critical study;Yekutiel P,1980
4. The philosophy of disease eradication;Andrews JM;Am J Public Health,1963
5. Eradication of infectious diseases;Cockburn A;Science,1961