1. Tetanus surveillance—United States, 1995–1997;MMWR,1998
2. Tetanus;Bleck,1997
3. Progress toward the global elimination of neonatal tetanus, 1988–1993;MMWR,1994
4. Vaccination against tetanus in elderly;Steger;Lancet,1996
5. Unfinished business;Karalliedde;World Health Forum,1995