1. Shift in age in chickenpox;Miller;Lancet,1993
2. Increasing incidence of varicella hospitalisations in the United States Army and Navy personnel: are today's teenagers becoming more susceptible?;Gray,1990
3. A shift in age in chickenpox;Sloan;Lancet,1992
4. Varicella-zoster virus infection in pregnancy;Enders;Prog Med Virol,1984
5. Varicella-zoster virus infectin in pregnancy;Fox;Am Fam Physician,1989