1. Ahlfors K, Harris S, Ivarsson S, Svanberg L (1981) Secondary maternal cytomegalovirus infection causing symptomatic congenital infection. N Engl J Med 305: 284
2. Alford CA, Neva FA, Weller TH (1964) Virologic and serologic studies on human products of conception after maternal rubella. N Engl J Med 271: 1275–1281
3. Alford CA, Stagno S, Reynolds DW (1974) Congenital toxoplasmosis: clinical, laboratory and therapeutic considerations with special reference to subclinical disease. Bull NY Acad Med 50: 160–181
4. Alford CA, Stagno S, Pass RF, Britt WJ (1990) Congenital and perinatal cytomegalovirus infections. Rev Infect Dis 12: S742–S753
5. Ancona RJ, Ferrieri P, Williams PP (1980) Maternal factors that enhance the acquisition of group streptococci by newborn infants. J Med Microbiol 13: 273–280