TY - JOUR A1 - Yorke, J.A. A1 - Nathanson, N. A1 - Pianigiani, G. A1 - Martin, J. T1 - Seasonality and the requirements for perpetuation and eradication of viruses in populations Y1 - 1979 DO - 10.1093/oxfordjournals.aje.a112666 JF - American Journal of Epidemiology VL - 109 IS - 2 ER -