(Q30233096)
Statements
2 references
Surveillance and control measures during smallpox outbreaks (English)
Emma Kerrod
Alasdair M Geddes
1 February 2005
4 references
23 March 2019
3 November 2019
1 September 2020
4 references
23 March 2019
3 November 2019
1 September 2020
1 reference
1 reference