1. Krous, H. F., Dietzman, D., Ray, C. G. 1973. Fatal infections with echovirus types 6 and 11 in early infancy. Am. J. Dis. Child. 126, 842–846.
2. Hughes, J. R., Wilfert, C. M., Moore, M., Benirschke, K., De Hoyos Guevara, E. 1972. Echovirus 14 infection associated with fatal neonatal hepatic necrosis. Am. J. Dis. Child. 123, 61–67.
3. Philip, A. G. S., Larson, E. J. 1973. Overwhelming neonatal infection with echo 19 virus, J. Pediat. 82, 391–397.
4. Purdham, D. R., Purdham, P. A., Wood, B. S. B., George, R. H, Martin, A. J. 1976. Severe echo 19 virus infection in a neonatal unit. Arch. Dis. Child. 51, 634–636.
5. Hart, R. J. C., Miller, D. L. 1973. Echovirus—17 infections in Britain 1969–71. Lancet ii, 661–664.