Kaiser L, Couch R B, Galasso G J, Glezen W P, Webster R G, Wright P F, Hayden F G
Division of Epidemiology and Virology, University of Virginia School of Medicine, Charlottesville 22908, USA.
Antiviral Res. 1999 Jul;42(3):149-75. doi: 10.1016/s0166-3542(99)00034-0.